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In a post-judgment ruling from the U.S. District Court for the Eastern District of New York, the court rejected defendants’ bid to escape a destruction mandate after the asserted patents expired just days after a permanent injunction issued, ordering the destruction of all infringing “RadCad caddies” in defendants’ possession during the patent term. The decision affirms courts’ equitable powers to remedy past infringement even post-expiration of a patent, citing Federal Circuit precedents to distinguish between impermissible future-use bans and status quo restorations like product destruction.

Background

Following a finding of willful infringement, the court on August 29, 2025, entered a Permanent Injunction Order (“PI Order”) enjoining defendants from making, using, selling, or offering to sell infringing RadCad caddies—battery-powered medical transport devices—and requiring, at defendants’ expense, the destruction of all such products in their possession or control (the “Destruction Order”). The PI Order specified it would “remain in effect until the expiration of the asserted patents” and mandated notification of compliance within 30 days.

Plaintiff notified the court on September 12, 2025, that the patents expired on September 2, 2025—mere days after the PI Order. Defendants moved for confirmation that the expiration of the patent nullified all obligations, including destruction and reporting, arguing the court lacked post-expiration equitable authority. Plaintiff countered that the patents’ lapse didn’t moot remediation for past wrongs. The court, balancing the PI Order’s terms with enduring jurisdiction, sided with plaintiff.

Key Issues in the Decision

The court’s analysis hinged on the interplay between the PI Order’s explicit expiration tie and broader equitable remedies for infringement.

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In Anonymous Media Research Holdings, LLC v. Samsung Electronics Co., Ltd. (No. 2:23-CV-00439-JRG-RSP, E.D. Tex. Sept. 17, 2025), the U.S. District Court for the Eastern District of Texas denied Samsung’s motion to exclude the apportionment opinions of plaintiff’s expert, Mr. W. Leo Hoarty. The ruling, by Magistrate Judge Roy S. Payne, underscores the court’s gatekeeping role under Daubert while affirming that methodological critiques—such as alleged inclusion of prior art value or equal-weight assumptions—typically go to the weight of evidence, not admissibility. This decision in a multi-patent infringement suit over automatic content recognition (ACR) technology highlights the latitude afforded technical experts in royalty calculations, particularly when grounded in defendant-specific data.

Background

AMRH accuses Samsung of infringing four patents (Nos. 9,942,434; 10,244,180; 10,484,503; and 11,238,363) covering ACR systems for fingerprinting and matching media content to enable targeted ads and analytics in smart TVs. Hoarty, a technical expert, opined on apportionment, starting from Samsung’s “Matching and Analytics Servers” costs, counting infringing sub-features (e.g., fingerprint databases), and applying a weighted apportionment rate tied to Samsung’s internal allocations and his expertise.

Samsung sought exclusion under Fed. R. Evid. 702 and Daubert, arguing Hoarty’s analysis failed to isolate the patents’ incremental value over prior art, used an unreliable feature-counting method, applied a one-size-fits-all rate across patents, and ignored total ACR costs. After briefing, the court denied the motion.

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In a recent decision from the U.S. District Court for the Northern District of Georgia, the Court granted motions to dismiss and for judgment on the pleadings, invalidating two patents related to software for detecting cheating in the card game bridge. The ruling underscores the ongoing challenges for software patents under 35 U.S.C. § 101, particularly those involving data collection and analysis. The court applied the two-step Alice framework to find the patents directed to an abstract idea without an inventive concept, highlighting the limits of patenting mathematical techniques even in niche applications.

Background

This case centers on patents for technology designed to detect cheating in bridge, a trick-taking card game with over 165,000 professional members in North America. Plaintiff, The EDGAR Association (“EDGAR”), owns and developed a competing system called EDGAR (Everyone Deserves a Game Above Reproach), which uses data analysis to generate reports on potential cheating. EDGAR filed suit seeking declaratory judgments that U.S. Patent Nos. 11,014,005 (the “‘005 Patent”) and 11,439,912 (the “‘912 Patent”)—owned by Defendants Nicolas Hammond and Hammond Software, Inc. (collectively, the “Hammond Defendants”)—are invalid and not infringed.

The ‘005 Patent, titled “Detecting Cheating and Changes in Playing Ability in Partial Knowledge and Trick-Taking Games,” issued on May 25, 2021, contains 20 claims, including three independent claims. The ‘912 Patent, a continuation of the ‘005 Patent, issued on September 13, 2022, shares a substantially identical specification. Both patents claim methods, systems, and computer equipment for detecting cheating by: (1) acquiring board data from bridge games (e.g., hand records, table results, contracts, and declarers); (2) determining performance values for players; (3) detecting deviations by comparing values against thresholds based on past cheating or optimal behavior; and (4) alerting administrators via electronic message.

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The U.S. Patent and Trademark Office issued a significant policy shift on July 31, 2025, announcing it will strictly enforce a procedural rule that has been loosely applied for years, potentially making it harder for challengers to invalidate patents through inter partes review (IPR) proceedings.

Key Policy Change

The USPTO will now strictly enforce 37 C.F.R. § 42.104(b)(4), which requires IPR petitions to “specify where each element of the claim is found in the prior art patents or printed publications relied upon.” This marks a dramatic departure from the agency’s previous practice of waiving this requirement.  As Acting USPTO Director Coke Morgan Stewart explained in the memorandum, “enforcement of Rule 104(b)(4) means that applicant admitted prior art (AAPA), expert testimony, common sense, and other evidence that is not ‘prior art consisting of patents or printed publications’ (collectively, ‘general knowledge’) may not be used to supply a missing claim limitation.”

What This Means in Practice

Under the new enforcement approach, IPR petitioners can no longer rely on general knowledge, expert testimony, or common sense to fill gaps in their prior art references when challenging patent claims. Instead, they must point to specific patents or published documents that disclose each element of the challenged claims.  However, the USPTO clarified that general knowledge can still play a supporting role. “General knowledge may still be used in an IPR to support a motivation to combine or to demonstrate the knowledge of a person having ordinary skill in the art,” the memorandum states.

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The U.S. Patent and Trademark Office has denied institution of Inter Partes Review (IPR) proceedings against two Applied Optoelectronics patents in a discretionary decision that highlights how patent age can influence administrative challenges.

In a decision dated June 27, 2025, Acting USPTO Director Coke Morgan Stewart denied Cambridge Industries USA’s petitions to institute IPR proceedings against Applied Optoelectronics patents 9,523,826 B2 and 10,042,116 B2. The denial came despite the Director’s acknowledgment that many of Applied Optoelectronics’ other arguments for discretionary denial were weak.

Key Factors in the Decision

1. Patent Age and Settled Expectations

The decisive factor was the age of the challenged patents. The Director noted that the patents in IPR2025-00433 and IPR2025-00435 “have been in force for nine and seven years, respectively,” creating stronger settled expectations for the patent owner compared to newer patents in related proceedings. As the Director explained: “Patent Owner’s settled expectations as to the patents challenged in IPR2025-00433 and IPR2025-00435 are stronger and discretionary denial is appropriate as to these proceedings.”

2.Parallel District Court Litigation

The parties are engaged in parallel litigation in the Northern District of California, though the impact was limited since there is no currently scheduled trial date and the Markman hearing has been vacated.

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The U.S. Patent and Trademark Office Director has granted Director Review and vacated the Patent Trial and Appeal Board’s decisions to institute two separate inter partes review (IPR) proceedings challenging the same patent claims in a dispute between CrowdStrike, Inc. and GoSecure, Inc.

Background of the Dispute

The case involves two IPR proceedings (IPR2025-00068 and IPR2025-00070) filed by CrowdStrike challenging Patent 9,954,872 B2 owned by GoSecure. CrowdStrike filed separate petitions primarily to present two different interpretations of the claim term “association,” a broader construction and a narrower construction.

The Director’s Ruling

Acting Under Secretary Coke Morgan Stewart determined that the Board abused its discretion by instituting both proceedings. The Director emphasized that “one petition should be sufficient to challenge the claims of a patent in most situations” and “multiple petitions by a petitioner are not necessary in the vast majority of cases,” citing the Board’s Consolidated Trial Practice Guide. The Director found that allowing multiple petitions for different claim constructions “effectively expands the permitted word count and places ‘a substantial and unnecessary burden on the Board and the patent owner and could raise fairness, timing, and efficiency concerns.’”

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In a recent inter partes review institution decision, the Patent Trial and Appeal Board (PTAB) addressed and rejected a procedural challenge regarding word count compliance, providing guidance on formatting requirements and waiver of procedural objections.

In IPR2025-00112, Patent Owner Miracor Medical SA accused Petitioner Abbott Laboratories of circumventing the 14,000-word limit for IPR petitions through improper formatting. Patent Owner argued that Abbott’s petition “regularly omits a space when citing to exhibits (e.g., ‘Ex.1001’ vs. ‘Ex. 1001’), the expert’s declaration (e.g., ‘¶¶16–19’ vs. ‘¶¶ 16–19’), and statutes (e.g., ‘§103’ vs. ‘§ 103’).” Patent Owner claimed these formatting choices occurred so frequently that “at least 966 words have been improperly undercounted,” resulting in “an advantage to Petitioner and undue prejudice to Patent Owner.” The patent owner sought denial of the entire petition based on this alleged violation.

PTAB’s Established Standards

The Board referenced the Patent Trial and Appeal Board Consolidated Trial Practice Guide, which states that “deleting spacing between words, or using excessive acronyms or abbreviations for word phrases, in order to circumvent the rules on word count, may lead to a party’s brief not being considered.” The guidance specifically warns against manipulative formatting designed to evade word count limitations, citing the Federal Circuit’s decision in Pi-Net Int’l, Inc. v. JPMorgan Chase & Co., 600 F. App’x 774 (Fed. Cir. 2015).

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The Patent Trial and Appeal Board (PTAB) has denied a petition for inter partes review of Phenix Longhorn LLC’s patent, ruling that the petitioner failed to properly address means-plus-function claim limitations as required by USPTO rules.

Background

In IPR2025-00044, Petitioner challenged claims 1-3, 5, and 6 of U.S. Patent No. 7,557,788 B1, titled “Gamma Reference Voltage Generator.” The patent relates to a programmable buffer integrated circuit for generating gamma correction reference voltages used in liquid crystal displays (LCDs).

Key Issue: Means-Plus-Function Claim Construction

The central issue in the case involved proper construction of “means for executing” limitations found in the challenged claims. Under 37 C.F.R. § 42.104(b)(3), petitions must identify the specific portions of the specification that describe the structure corresponding to means-plus-function claim elements. The PTAB found that Petitioner failed to satisfy the mandatory claim construction requirements in multiple ways:

First, the Petitioner took contradictory positions on whether certain claim limitations were means-plus-function terms. As the Board noted: “Petitioner’s argument that claim 3’s ‘means for executing . . . ‘ is means-plus-function language (Pet. 12–14) conflicts and is at odds with Petitioner’s argument that claims 1 and 5’s ‘means for executing’ (discussed above) is not means-plus-function language (Pet. Reply 5).”

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The U.S. Patent and Trademark Office’s Patent Trial and Appeal Board (PTAB) rejected Micron Technology’s arguments that national security and foreign policy concerns should prevent a Chinese memory manufacturer from challenging an American patent, highlighting current limitations on the Board’s discretionary authority.

Central Dispute Over Chinese Government Involvement

In a June 10, 2025 decision, the PTAB granted Yangtze Memory Technologies Co., Ltd. (YMTC) petition challenging Micron’s U.S. Patent No. 8,945,996 B2, despite Micron’s extensive arguments about YMTC’s ties to the Chinese government.  Micron argued that YMTC is fundamentally a Chinese state-owned entity, describing it as “China’s State-Owned NAND Memory Company” and alleging that “the Chinese government is in privity with YMTC and is using YMTC as a proxy to challenge U.S. patents that impede its significant investments in YMTC and strategic objectives in the semiconductor industry.” The patent owner warned that “instituting review would set a dangerous precedent, enabling any foreign government to challenge U.S. patents through proxies and thereby threaten the economic and strategic interests of the United States.”

Board’s Hands Tied on Foreign Policy Considerations

Despite acknowledging these concerns, the PTAB ruled it was powerless to consider such arguments under current USPTO guidance. The Board stated definitively: “To date, the Director has not provided any guidance as to when a panel should deny institution based on foreign policy or national security implications, applicable to the facts presented here.” More significantly, the Board noted that current USPTO policy explicitly prohibits such considerations, explaining that “the USPTO has expressly determined that Board panels, in considering discretionary denial sought in a Preliminary Response filed on or before March 26, 2025, may not consider such factors.” The Board cited official USPTO guidance stating that “The panel will not address any new factors outlined in the Process Memorandum,” effectively ruling that foreign policy and national security implications are off-limits for PTAB panels when deciding whether to institute patent reviews.

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The U.S. Court of Appeals for the Federal Circuit delivered a noteworthy ruling on Jan. 27, 2025, definitively establishing that the Patent Trial and Appeal Board (PTAB) retains jurisdiction to conduct inter partes review (IPR) proceedings even after patents have expired. The decision in Apple Inc. v. Gesture Technology Partners, LLC, 127 F.4th 364 (Fed. Cir. 2025) provides important clarity for future post-expiration challenges.

The Jurisdictional Challenge

Gesture Technology Partners, the patent owner, mounted an aggressive jurisdictional challenge arguing that the PTAB lacked authority to review its expired patent. The company’s U.S. Patent No. 8,878,949, covering camera-based gesture recognition technology, had expired in May 2020—more than a year before Apple filed its IPR petition in June 2021.

Gesture’s argument hinged on an interpretation of the Supreme Court’s 2018 decision in Oil States Energy Services v. Greene’s Energy Group. The company contended that because Oil States characterized patents as “public franchises,” and because expired patents no longer grant the right to exclude others, the “public franchise ceases to exist” upon expiration. With only limited rights remaining—primarily the ability to collect past damages—Gesture argued that jurisdiction shifted exclusively to Article III federal courts.

The Federal Circuit’s Response

Writing for a three-judge panel, Circuit Judge Timothy B. Dyk systematically dismantled Gesture’s jurisdictional argument, finding it “incompatible with the Court’s logic in Oil States.” The court emphasized that the Supreme Court’s reasoning in Oil States was specifically grounded in the concept that IPR proceedings represent “a second look at an earlier administrative grant of a patent.” This fundamental characterization, the Federal Circuit explained, focuses on the review of the original grant decision rather than the current scope of patent rights. “The review of an earlier grant of a patent thus inherently involves the adjudication of a public right, and it is irrelevant whether the patent has expired,” the court stated, “since the patent itself continues to confer a limited set of rights to the patentee.”

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