Perspectives on USPTO Rulemaking

A Perspective on USPTO Rulemaking Following In re Chestek, by Maier & Maier partner Robert Bahr, has been published on IP Watchdog. The article discusses the notice-and-comment rulemaking procedures practiced by the USPTO and the impact of the recent Federal Circuit decision in In re Chestek. You can read the full article here.

Fed Circuit Overturns $2.18-billion-dollar Judgement in VLSI Technology LLC v. Intel Corporation

In 2021, VLSI brought a patent infringement case against Intel seeking $3 billion in damages in the Western District of Texas. A jury decision found that Intel had infringed 2 of VLSI’s patents and awarded VLSI a $2.18 billion dollar settlement for said infringement.

The 2 patents at issue were US Patent No. 7,523,373 “Minimum Memory Operating Voltage Technique” and US Patent No. 7,725,759 “System and Method of Managing Clock Speed in an Electronic Device”. Intel’s accused products included various Haswell and Broadwell Microprocessors. The jury found that Intel infringed the ‘373 patent on the basis of literal infringement and infringed the ‘759 patent but only under the doctrine of equivalents.

Generally speaking, the doctrine of equivalents provides a limited exception to the principle that claim meaning defines the scope of rights granted by a patent, the inquiry required by the doctrine is “Does the accused product or process contain elements identical or equivalent to each claimed element of the patented invention?” (see MPEP 2186). However, courts have often emphasized “that the doctrine of equivalents is the exception, however, not the rule,” Eli Lilly & Co. v. Hospira, Inc., 933 F.3d 1320.

Intel appealed the decision to the U.S. Court of Appeals for the Federal Circuit, arguing that Intel did not infringe either of the patents, and specifically with regards to the ‘759 patent, that VLSI improperly invoked the doctrine of equivalents as (a) they were barred by prosecution history estoppel from invoking the doctrine of equivalents, and (b) VLSI’s evidence of equivalents was legally insufficient for a showing of infringement. Additionally, Intel argued that even if they had infringed the patents, the damages awarded with respect to the ‘373 patent were improper.

In a precedential decision released December 4, 2023, the Federal Circuit partially agreed with Intel’s position and reversed the earlier jury decision in part and affirmed in part. First on the ‘373 patent, while the court upheld the finding of infringement on the ‘373 patent, the court found Intel’s arguments with respect to damages to be persuasive. Therefore, while the infringement finding will be upheld, the case will be remanded for another hearing exclusively on damages.

On the ‘759 patent the court disagreed with Intel’s argument that VLSI was barred from bringing up doctrine of equivalents due to prosecution history estoppel but agreed that the evidence of equivalence VLSI provided was legally insufficient to form a verdict of infringement. Specifically, the ‘759 patent claim required “a first master device coupled to the bus, the first master device configured to provide a request to change a clock frequency of a high-speed clock in response to a predefined change in performance of the first master device”. Intel however showed that for their devices the equivalent cores did not request to change frequency based on changes the cores identified in their own performance, because only the software running on the (receiving) power control unit, based on observations of system conditions, called for a frequency change.

VLSI’s argument under the doctrine of equivalents attempted to accommodate this discrepancy by stating that Intel’s combination of (a) the core and (b) the software module on the power control unit that actually called for the frequency change, were equivalent to the first master device required by the claims. In order for this argument to meet the burden required by the doctrine, the court stated VLSI’s testimony needed to show “that the core and certain code, which resides on the power control unit, together perform substantially the same function, in substantially the same way, to achieve substantially the same result as the claimed ‘first master device”.

VLSI’s testimony “contain[ed] no meaningful explanation of why the way in which the request is made is substantially the same as what the claim prescribes. The question [was] not whether, in a schematic drawing used to illustrate functions, an engineer could ‘draw[] . . . [a] line’ in different places. The question is about actual functionality-location differences. It is not enough, moreover, to say that the different functionality location placements were a ‘design choice.” Therefore, VLSI’s testimony was legally insufficient to support a showing of infringement under the doctrine of equivalents.

The court’s holding here may have significant impact on the use of doctrine of equivalents in patent infringement litigation going forward, as the court increasingly emphasizes that the doctrine is a narrow doctrine, only to be applied in “exceptional” circumstances.

Federal Circuit Revisits IPR Estoppel in Ironburg Inventions LTD. v. Valve Corp.

Ironburg Inventions LTD. v. Valve Corp., 21-2295 (Fed. Cir. 2023)

This case presented the Court of Appeals for the Federal Circuit with an opportunity to clarify the standards for determining estoppel of invalidity grounds in inter partes review (IPR) pursuant to 35 U.S.C. § 315(e)(2).

Ironburg initially sued Valve in 2015 for infringement of their U.S. Patent 8,641,525 (the ‘525 patent) which describes a handheld video game controller with the particular innovation of back control buttons. Valve’s “Steam Controller” included similar back buttons. The trial took place in 2021 over Zoom with the jury returning a verdict of willful infringement by Valve and awarding over $4 million in damages to Ironburg. Both parties appealed.

Valve raised on appeal the arguments that: first, the claims of the ‘525 patent are invalid as indefinite; second, that Valve is entitled to judgment as a matter of law because trial record contained insufficient evidence to find infringement, or alternately that Valve is entitled to a new trial because the trial court erroneously allowed a co-inventor to provide testimony wile Valve’s genera counsel’s testimony was excluded; third, the district court erred in denying Valve’s motion for judgment as a matter of law on the issue of willfulness, or alternatively for a new trial on willfulness; and fourth, Valve should not have been estopped from asserting prior art grounds against the ‘525 patent. Ironburg’s cross-appeal for enhanced damages was dismissed as the district court was within its discretion to decline a grant of enhanced damages.

The appeals court dismissed Valve’s first arguments for indefinite claims. The terms describing the controller back buttons as “elongate member[s]” “substantially the full distance between the top and bottom edge” were found clearly, to a person of ordinary skill in the art, to be descriptive of long buttons spanning the length of the back of the controller which are accessible to the users third, fourth, and fifth fingers.

Judge Clevenger’s dissenting opinion on this issue contends that the “extends substantially the full distance between the top edge and bottom edge” language is indefinite because it gives a person of ordinary skill in the art no certain boundaries for starting and ending such a measurement. He finds that the district court merely “held ipse dixit that Valve did not carry its burden” for proving that this language is indefinite without properly addressing Valve’s measurement argument.

Valve’s appeal for judgment as a matter of law was dismissed by the appeals court based on finding that the jury was provided with substantial enough evidence to reach their conclusion. A significant factor in this finding was the fact that each juror had an actual Steam Controller sent to their homes for hands-on examination. The alternate appeal for new trial was also dismissed because the district court was found to have acted within its discretion in excluding Valve’s proffered testimony.

The appeals court did find that the district court erred as to Valve’s third issue on appeal regarding willfulness, however the error was harmless and thus the denial of Valves motions was upheld.

Valve’s fourth issue on appeal resulted in a significant clarification to the standards for Non-Petitioned Grounds estoppel in IPR review. Valve presented four grounds for invalidity, two Non-Instituted and two Non-Petitioned. The appeals court found that the district court was correct in estopping the two Non-Instituted Grounds because they were included in Valve’s initial IPR petition but not instituted by the Patent and Trademark Office. Valve chose not to seek remand for this decision and therefore forfeited their claim against estoppel.

In contrast, estoppel of the Non-Petitioned Grounds was vacated and remanded. The “standards by which a determination is to be made as to what invalidity grounds not presented in a petition are estopped” had not yet been addressed by the appeals court. Thus, the district court was left to look to other district court rulings, and erroneously placed the burden of proof on Valve for determining whether “a skilled searcher conducting a diligent search reasonably could have been expected to discover” the grounds in question. The appeals court held instead that “the burden of proving, by preponderance of the evidence, that a skilled searcher exercising reasonable diligence would have identified an invalidity ground rests on the patent holder, as the party asserting and seeking to benefit from affirmative defense of IPR estoppel.”

The court’s holding on Valve’s fourth issue on appeal will have significant impact on litigation concerning IPR estoppel moving forward, as patent owners have now been strapped with a new burden of proof in defenses against invalidity.

To Qualify as a Joint Inventor – HIP, Inc. v. Hormel Foods Corp., 22-1696 (Fed. Cir. 2022)

Earlier this year, in an opinion by Judge Lourie the Court of Appeals for the Federal Circuit overturned a district court decision finding that David Howard, a representative of HIP, should be added as a joint inventor on Hormel’s U.S. Patent 9,980,498 (the ‘498 patent). The relevant independent claims, 1 and 5, describe methods of making precooked bacon and meat pieces (respectively) using hybrid cooking systems.

Hormel’s relationship with HIP began in 2007 when they entered into a joint agreement to develop an oven to be used for a two-step cooking process. During the first three months of this process Howard disclosed an infrared preheating concept which became the core issue on appeal. Hormel later moved testing to its own research facility and finalized their process, filing the ‘498 patent thereafter.

HIP suit against Hormel alleged that Howard was either the sole or joint inventor. The district court found him to be a joint inventor based on his contribution of the infrared oven preheating concept which appears in independent claim 5. Hormel raised two issues on appeal, only one of which was necessary for reaching the judgment.

“To qualify as a joint inventor, a person must make a significant contribution to the invention as claimed” based on the Pannu three part test: (1) contribution in some significant manner to the conception of the invention; (2) contribution to the claimed invention that is not insignificant in quality when measured against the dimension of the full invention; and (3) did more than merely explain to the actual inventors some well-known concepts and/or the current state of the art. All three Pannu factors must be met for one to be a joint inventor.

The Court reached its decision based solely on the insignificance of Howard’s contribution in light of the invention in its entirety, negating the second Pannu factor. First, Howard’s infrared preheating contribution is mentioned only once in one of the claims, claim 5, as one of three possible alternative methods. In contrast, the use of microwave ovens as developed by Hormel is featured repeatedly thought the patent. Further, the examples and figures not once describe or depict the use of an infrared oven, again focusing on microwave ovens.

In summary, HIP’s favorable district court ruling that Howard was to be added as joint inventor of the ‘498 patent was overturned based on the overwhelming insignificance of his infrared oven preheating contribution in comparison to the overall invention as described in the patent. Inventors should be on notice that to secure their inclusion as joint inventors their contributions must appear frequently or prominently in both the figures and text of a patent.

Federal Circuit Partially Overturns Invalidation of 4 Software Patents Under §101

Inventor Sholem Weisner sued Google LLC for patent infringement of four patents (10,380,202, 10,642,910, 10,394,905 and 10,642,911) in the District Court for the Southern District of New York in 2020. Weisner’s patents all shared the same specification which generally described ways to “digitally record a person’s physical activities and ways to use this digital record.” Google enjoyed an early win when the District Court granted summary judgment finding all claims ineligible under §101. However, on October 13, 2022, the Federal Circuit partially reversed the District Court, specifically finding that the ‘905 and ‘911 patent claims should not have been dismissed for patent ineligibility at this stage. Weisner v. Google LLC, 2021-2228  (Fed. Cir. 2022).

The Federal Circuit found that the District Court correctly dismissed the ‘202 and ‘910 patents for patent ineligibility. The claims in question were directed to the abstract idea of “collecting information on a user’s movements and location history and electronically recording that data.” Specifically, these claims were essentially about “creating a digital travel log”. Weisner argued that the system was an improvement on a computer because it automatically made these recordings and limited “what is recorded to only specific types of interactions that are pre-approved and agreed to by an individual member and a vendor member”. Neither the District Court nor the Federal Circuit found this line of argumentation compelling, noting that “humans have consistently kept records of a person’s location and travel in the form of travel logs, diaries, journals…” purely automating or digitizing a travel log is not sufficient to “bring the claims out of the realm of abstractness.”

With regard to the remaining ‘905 and ‘911 patents the Federal Circuit said, “at step one [of Alice] the district court erred by failing to separately analyze these patents.” While the district court analyzed the remaining patents on the same grounds as the ‘202 and ‘910 the Federal Circuit found that these patents were instead directed to “creating and using travel histories to improve computerized search results” (emphasis added). Specifically, the ‘905 and ‘911 patents recited “a method of enhancing digital search results for a business in a target geographic area using URLs of location histories.” The Federal Circuit still found this was an abstract idea, but much closer than the first two patents.

On Alice step 2 the Federal Circuit found that the ‘905 and ‘911 patents “recite a specific implementation of the abstract idea that purports to solve a problem unique to the internet and that, accordingly, these claims should not have been held ineligible under step two at this stage.” This finding was not based on any new structure or algorithm, in fact Weisner conceded “the patented system uses the same or similar algorithm used by existing search engines.” However, this alone did not “doom the claims”. The allowability was instead found based on “the claims specificity as to the mechanism through which they achieve improved search results”, which was done “through a ‘location relationship’ with a ‘reference individual’ for the ‘905 patent or through the ‘location history of the individual member’ … for the ‘911 patent.” Therefore, the claims recite “a new technique for prioritizing the results of the conventional search,” which in the context of the internet are sufficient to “add significantly more to the abstract idea of using travel histories to improve computerized search results.”

This case, like the Federal Circuits other recent §101 case Cooperative Entertainment v. Kollective Technology, shows that the Federal Circuit is willing to push back on District Court §101 invalidations, especially for software cases where such invalidations are common. Whether this is indicative of a larger trend on how the Federal Circuit views §101 going forward still remains to be seen.

Oracle Corp. v. Click-to-Call Technologies LP

Under 315(b) of the AIA (America Invents Act), Inter Partes Review “may not be instituted if the petition requesting the proceeding is filed more than 1 year after the date on which the petitioner, real party in interest, or privy of the petitioner is served with a complaint alleging infringement of the patent.”[1] The Click-to-Call decision revolves around whether the time-bar applies when a complaint has been voluntarily dismissed without prejudice.

In 2001, the patent in this case, U.S. Pat # 5,818,836, had been exclusively licensed to Inforocket, who filed a patent infringement suit asserting the ‘836 patent against Ingenio (then under its previous name, Keen).[2] Ingenio then purchased Inforocket as a wholly-owned subsidiary, and the parties stipulated to dismiss the suit without prejudice.[3] Subsequently the ‘836 patent was acquired by Click-to-Call.  On May 29, 2012, Click-to-Call filed suit asserting the same ‘836 patent against a number of defendents, including Ingenio, leading to the filing of this IPR. [4]

In an opinion designated as precedential by the PTAB, the Board ruled that a voluntary dismissal of a suit creates an exception to the 315(b) time-bar. “The Federal Circuit consistently has interpreted the effect of such dismissals as leaving the parties as though the action had never been brought.”[5] Based on the premise that a voluntary dismissal serves to nullify the existence of a suit, the PTAB held that the one-year time limit for filing an IPR would be nullified along with it.

On appeal, the Federal Circuit disagreed and found that the PTAB committed legal error in its determination.  The Federal Circuit overturned the PTAB ruling. As the decision explains “the provision unambiguously precludes the Director from instituting an IPR if the petition seeking institution is filed more than one year after the petitioner, real party in interest, or privy of the petitioner ‘is served with a complaint’ alleging patent infringement. Simply put, § 315(b)’s time bar is implicated once a party receives notice through official delivery of a complaint in a civil action, irrespective of subsequent events.”[6]

Unlike the 2001 infringement complaint, the PTAB’s precedential time-bar decision has now been entirely nullified.

[1] 35 U.S.C. § 315(b)

[2] Oracle Corp. v. Click-to-Call Technologies LP, IPR2013-00312, Paper 26 at 14 (PTAB Oct. 13, 2013).

[3] Id.

[4] Id.

[5] Id at 17.

[6] Oracle Corp. v. Click-to-Call Technologies LP, Slip Op at 13 (CAFC Aug. 16, 2018).

Tribal Sovereign Immunity: Federal Circuit Stays Proceeding after PTAB Cast Doubt On Patent Defense Strategy

Last fall, Maier & Maier highlighted a new defense strategy for Patent Owners against IPR (Inter Partes Review) Petitions in an overview of the ongoing Allergan “Tribal Immunity” Proceeding. In sum, Allergan transferred their patent portfolio to the Saint Regis Mohawk Tribe (“Tribe”) in upstate New York, paying them a lump sum and royalties in exchange for retaining an exclusive license for the patent. In doing so, the Tribe became the Patent Owner, availing them of protection from suit under the Eleventh  Amendment.[1] As explained by the Supreme Court, “As a matter of federal law, an Indian tribe is subject to suit only where Congress has authorized the suit or the tribe has waived its immunity.”[2]. After the assignment, the Tribe filed a motion to dismiss based on their Tribal Immunity. Just last month, the Patent Trial and Appeal Board (PTAB) denied that motion and set forth an expedited schedule for oral argument on April 3, 2018. The Federal Circuit issued a stay of that proceeding, giving Allergan another opportunity to plead its case for the Tribe’s sovereign immunity.

The PTAB Decision

The PTAB panel primarily based its decision on two findings: 1). Tribal Immunity does not apply to the petition for IPR; and 2). Even if it does, the Tribe is not an indispensable party that the Proceeding could not continue without.

The Board relied on a few factors for the first finding, including an absence of statutory support for applying Tribal Immunity to administrative proceedings like the PTAB and the fact that the PTAB decision would be applied to the patent itself, not the Tribe as the patent holder.

Even if Tribal Immunity applied, the Board ruled that the proceeding would still continue because the Tribe is not an indispensable party. To come to this result, the Board conducted a thorough analysis of the sale to the Tribe and the alleged license back to Allergan. As explained in the decision, the involved parties/ characterization of an agreement as a license compared to a full assignment is not determinative, with precedent relying more heavily on the terms than the label given to it. According to the Board, Allergan’s exclusive right to practice the patent, coupled with the Tribe’s ‘illusory’ rights to enforce it, indicated that the agreement was an assignment and not a license. This in turn makes Allergan an owner and allows the proceeding to continue, as any of the Tribe’s interests could be fully represented by Allergan, tipping the scales in the indispensable party analysis.[3]

The Stay

After the PTAB decision, the Board sua sponte set forth an expedited schedule which would have brought a Final Written Decision by June.[4] Allergan filed an interlocutory appeal of the Board’s decision, requesting a stay of the IPR, which the Federal Circuit has granted. In the stay order, the Federal Circuit declared that “exclusive jurisdiction to resolve the threshold issue of whether these proceedings must be terminated vests in this court, and that the Board may not proceed until granted leave by this court.”[5]

The briefing schedule for the appeal is scheduled to be completed by May 18, 2018, including any amicus briefs, which are sure to be filed. Consequently, the IPR will not be heard anytime soon, and even upon the Federal Circuit’s ruling, the PTAB may not regain jurisdiction immediately. As the order explains, “The stay shall remain in effect until the day after oral argument in the appeals in June 2018.  The court will address whether the stay shall remain in effect or whether it will be lifted at that time based on further consideration of the merits of the appeals.”[6]


If the PTAB’s decision stands, it is unlikely that the Tribal Immunity defense will be a useful tool for Patent Owners in IPR proceedings. The PTAB ruled both against its application to IPR’s and established an alternate means to continue with the proceedings with the Tribe’s licensee, making the appeal an uphill battle.

Until the appeal is settled, anyone still seeking protection for their patents under Tribal Immunity will need to push the balance of their license agreement farther than Allergan and give the Tribe more than ‘mere royalties’ and an ‘illusory’ right to enforce so that 1). the licensee would not be determined the true owner and 2). the Tribe would not be deemed indispensable.[7]

The board’s decision struck another blow to sovereign immunity defenses, as just this past December the PTAB ruled that State Sovereignty could not be applied to dismiss an IPR proceeding when the Patent Owner has filed an infringement suit asserting the patent. In the Board’s view, the act of bringing suit is as a waiver of the Eleventh Amendment right that would otherwise apply to the proceeding.[8]

As we wait for the IPR to proceed again, you can check for updates at the PTAB’s online E2E tool, or at websites like which allow for full-text searching and automatic update alerts.

[1] The Eleventh Amendment provides that “Judicial power of the United States shall not be construed to extend to any suit in law or equity, commenced or prosecuted against one of the United States by Citizens of another State, or by Citizens or Subjects of any Foreign State.” U.S. Const. amend. XI.  See also Covidien LP v. University of Florida Research Foundation IncorporatedNeochord, Inc. v. University of Maryland BaltimoreReactive Surfaces Ltd., LLP v. Toyota Motor Corporation.

[2] Kiowa Tribe of Okla. v. Mfg. Techs., Inc., 523 U.S. 751, 754 (1998).

[3] Mylan Pharmaceutocals Inc., et al. v. Saint Regis Mohawk Tribe, IPR2016-01127, Paper 130 at 39 (PTAB, February 23, 2018).

[4] Mylan Pharmaceutocals Inc., et al. v. Saint Regis Mohawk Tribe, IPR2016-01127, Paper 132 at 4 (PTAB, February 23, 2018)

[5] Saint Regis Mohawk Tribe, Allergan, Inc. v. Mylan Pharmaceuticals Inc., et al., 2018-1638, Document 4 at 2 (Fed. Cir. March 28, 2018).

[6] Saint Regis Mohawk Tribe, Allergan, Inc. v. Mylan Pharmaceuticals Inc., et al., 2018-1638, Document 4 at 2-3 (Fed. Cir. March 28, 2018).

[7] See Luminara Worldwide, LLC v. Liown Elecs. Co., 814 F.3d 1343, 1351 (Fed. Cir. 2016) (“a financial interest . . . without more does not amount to a substantial right.”); see also Propat Int’l Corp. v. RPost, Inc., 473 F.3d 1187, 1191 (Fed. Cir. 2007) (“[T]he fact that a patent owner has retained a right to a portion of the proceeds of the commercial exploitation of the patent, . . . does not necessarily defeat what would otherwise be a transfer of all substantial rights in the patent.”)

[8] Ericsson Inc. v. Telfonaktiebolaget Lm Ericsson, IPR2017-01186, Paper 14 at 4 (PTAB, December 19, 2017).

Federal Circuit Rules on Patent Term Adjustment (PTA) in PCT Cases

In Actelion Pharms., Inc. v. Matal, the USPTO granted a Patent Term Adjustment (PTA) of 40 days for Actelion’s patent relating to pyridine derivatives.  The patent at issue was a national stage application filed under the Patent Cooperation Treaty.  Actelion contended that it should have been entitled to either 41 days from the 30-month deadline for filing or 45 days from the application’s actual filing date.

When filing the application, Actelion did not mark the check box on the USPTO form to expressly request early commencement of the national stage examination.  However, Actelion did submit a statement in a Preliminary Amendment that “Applicant earnestly solicits early examination and allowance of these claims.”  The USPTO determined that this statement did not comply with 35 U.S.C. § 371(f), which requires an express request for early commencement.  The Federal Circuit affirmed the USPTO determination, indicating that it is possible to request early commencement without using the optional USPTO form, but that Actelion’s statement failed to expressly request early commencement, particularly since it failed to even referenced § 371(f).

In the alternative, Actelion argued that even if the PTA was calculated from the 30-month deadline, it should have resulted in 41 days rather than 40 days.  The 30-month deadline happened to fall on a federal holiday and therefore examination did not commence until the following day.  Actelion argued that the federal holiday should have been included in the PTA calculation from the 30-month deadline, which would have resulted in 41 days rather than 40 days.  The Federal Circuit agreed with the USPTO calculation of 40 days because PCT regulations prohibited national stage commencement on a federal holiday.  Therefore, the additional day was not “undue delay” caused by the PTO, which would warrant PTA.

The USPTO determination of 40 days was affirmed.  Based on this ruling, it is advisable to ensure that § 371(f) is expressly invoked or the appropriate box is checked when requesting to commence national stage examination at an earlier date.

Federal Circuit Extends §101 to Cover Graphical User Interfaces in Core Wireless v. LG

In Core Wireless Licensing S.A.R.L. v. LG Electronics, Inc., 2016-2684, 2017-1922 (Fed. Cir. Jan. 23, 2018), a panel of the U.S. Court of Appeals for the Federal Circuit (Moore, O’Malley, Wallach) upheld patent claims directed to a graphical user interface under 35 U.S.C. §101, concluding that the claims were not directed to a patent-ineligible abstract idea.

Core Wireless brought an action against LG in the Eastern District of Texas alleging infringement of U.S. Patent Nos. 8,713,476 and 8,434,020, having claims dealing with an application summary screen that is displayed while the one or more applications summarized are in an un-launched state. The District Court denied summary judgment based on 35 U.S.C. §101, and LG appealed.

The Federal Circuit began its analysis by determining that the claims of the two patents in question were directed to an “improved user interface,” a non-abstract idea, rather than the abstract idea of an index. Specifically, these claims were “directed to a particular manner of summarizing and presenting information in electronic devices.” For example, claim 1 required “an application summary that can be reached directly from the menu” and further limiting the application summary (such as having the application summary list a limited set of data with each of the data in the list being selectable to launch the respective application and enable the selected data to be seen within the respective application) as well as a particular manner of accessing the summary window and certain other limitations.

The Court analogized the case to other cases in which a computer-implemented claim was found eligible, such as Enfish, LLC v. Microsoft Corp., Thales Visionix Inc. v. U.S., Visual Memory LLC v. NVIDIA Corp., and Finjan, Inc. v. Blue Coat Systems, Inc., specifically noting that the claims in each of these cases were found to improve a computer or technological system, and were thus not abstract. (Just like in many of these cases, the Court looked to the patent specifications in order to determine what aspects of a computer the claims were directed toward improving.)

Once the §101 matter was resolved, the Court also heard the issue of non-infringement. This turned, in large part, on the Court’s interpretation of the phrase “unlaunched state” in the claims, which LG had (unsuccessfully) argued in the District Court should refer to a situation in which the applications were “not running” rather than “not displayed.” LG argued that it would not infringe if the applications were required to be “not running.” The court (minus Judge Wallach, who dissented on this point) sided with the District Court, finding that the District Court correctly construed “unlaunched state” as “not displayed.”

Importantly, the claims in this case were considered to be an improvement to computer technology because they improved the ability of a user to use the computer. In order to use prior art systems, users had to “drill down through many layers to get to desired data or functionality [which] could seem slow, complex and difficult to learn, particularly to novice users,” while the claimed invention, by contrast, was much more user-friendly. This effectively adds “user-friendliness” or “usability” to the list of innovations which can be an improvement to computer technology, significantly expanding the list of patent-eligible subject matter.

It has also historically been a little unclear as to how graphical user interface designs can be protected by intellectual property rights. There is a circuit split between the Ninth Circuit and other circuits as to whether GUIs are copyrightable subject matter, and past Federal Circuit jurisprudence as to their patentability has come down on both sides of the line. However, the vast majority of cases (such as, for example, Intellectual Ventures I LLC v. Erie Indemnity Co., Intellectual Ventures I LLC v. Capital One Bank (USA), and Internet Patents Corp. v. Active Network, Inc.) have found GUIs to be ineligible, while the one case that upheld a GUI patent claim (Trading Technologies Int’l v. CQG Inc) was a non-precedential opinion that dealt with an extremely detailed claim. This case provides applicants with a clear model to follow for future applications on interface technology or any similar technology.

IPR Time-Bar Institution Decision Is Appealable

In Wi-Fi One, LLC v. Broadcom Corp., 15-1944 – 2018-01-08, the Federal Circuit reviewed whether an inter partes review (IPR) Institution Decision can be appealed based on a time-bar under 35 U.S.C. § 315(b).  Sitting en banc, the Federal Circuit ruled Institution Decisions made under 35 U.S.C. § 315(b) are appealable.

35 U.S.C. § 315(b) states “[a]n inter partes review may not be instituted if the petition requesting the proceeding is filed more than 1 year after the date on which the petitioner, real party in interest, or privy of the petitioner is served with a complaint alleging infringement of the patent.”

In 2010, the owner of the patents at issue, Ericsson, filed a complaint against three defendants in the Eastern District of Texas.  Broadcom was not a named defendant.  Ericsson prevailed on the infringement claims.  In 2013, Broadcom filed three separate petitions with the Patent Trial and Appeal Board (PTAB) for inter partes review (IPR) against the individual patents at issue.  Wi-Fi One, LLC acquired the patents at issue from Ericsson while the IPRs were pending.  Wi-Fi argued that Broadcom was time-barred from filing the IPRs because Broadcom was in privity with the defendants of the previous lawsuit filed more than 1 year prior.  Wi-Fi filed a motion with the PTAB seeking indemnity agreements, defense agreements, payments, and communications as evidence of such privity.  The PTAB denied Wi-Fi’s motion, instituted the IPR proceedings, and found the claims unpatentable.

Wi-Fi One appealed the Final Written Decisions to the Federal Circuit including arguments that the PTAB’s time-bar determination be overruled.  On appeal, the Federal Circuit affirmed the Decisions relying precedent from Achates Reference Publishing, Inc. v. Apple Inc., 803 F.3d 652, 658 (Fed. Cir. 2015), which ruled § 315(b) time-bar determinations are final and nonappealable under 35 USC § 314(d).

Despite this ruling, Wi-Fi again sought relief by petitioning for a rehearing en banc.  This petition was granted.

On January 8, 2018, the Federal Circuit, sitting en banc, ruled that PTAB institution decisions made based the statutory timing provisions of 35 U.S.C. § 315(b) of the America Invents Act are appealable.  In the majority Opinion, Judge Reyna emphasized the “strong presumption” for judicial review, noting “[i]n view of this strong presumption, we will abdicated judicial review only when Congress provides a ‘clear and convincing’ indication that it intends to prohibit review.” Wi-Fi One, LLC v. Broadcom Corp., 15-1944 – 2018-01-08 (citing Cuozzo Speed Technologies, LLC v. Lee, 136 S. Ct. 2131, at 2140 (2016)).

35 U.S.C. § 314(d) states “[t]he determination by the Director whether to institute an inter partes review under this section shall be final and nonappealable.”  The en banc Federal Circuit determined the natural reading of “under this section” limits its reach to institution determinations made under § 314.  Since the time-bar provision is found in section 315(b) of the statute and not § 314, the en banc Federal Circuit ruled that 35 U.S.C. § 314(d) did not apply and consequently the institution decision was appealable.  This decision overruled the prior Federal Circuit holding in Achates.