Litigation News

China's Supreme People's Court ruled that Luweimei Company's patent lawsuits against Unitree Robotics over Go2 and A2 robot dogs constituted malicious litigation. Luweimei obtained an "Electronic Dog" patent five days before suing, seeking RMB500 initially, then RMB80 million on appeal, then reverting to RMB500. The court rejected infringement claims after China's patent authority invalidated the patent. Unitree's counterclaim succeeded, with Luweimei ordered to pay RMB80,000 in legal costs and RMB3,700 in court fees.

Fractus and Geotab settled patent infringement litigation filed in the U.S. District Court for the Eastern District of Texas. The settlement resolves disputes over Fractus' patented antenna technology used in IoT applications. Terms remain confidential. The agreement confirms the relevance of Fractus' antenna patents in connected fleet and transportation markets, where reliable wireless performance is essential for fleet management, cargo visibility, and mobile asset monitoring devices.

Kahoot! filed a Supreme Court petition challenging the USPTO's "settled expectations" policy that denies inter partes review for older patents. The case joins Google LLC v. VirtaMove presenting identical questions about statutory authority and judicial review under 35 U.S.C. § 314(d). Kahoot! was sued by Interstellar Inc. over patent 10,339,825 covering online academic competition systems. The Federal Circuit denied mandamus relief. District court litigation remains stayed pending IPR outcome. Paul Hastings represents Kahoot!; case involves six-year patent age benchmark.

EU Commission fines Google €890 million for Digital Markets Act violations involving self-preferencing and steering restrictions. Second Circuit affirms copyright infringement dismissal against Jeff Koons as time-barred. Federal Circuit reverses Section 101 ruling, finding digital picture frame patent claims valid. Third Circuit affirms Ecolab cannot assert Deb Group patents without proper written communication. Unified Patent Court upholds Disney injunction across 11 EU countries for InterDigital video encoding patent infringement. University of Tennessee sues Anthropic for machine learning patent infringement. Sony files second copyright complaint against Udio over 30,000+ recordings.

Hagens Berman filed a securities class action against Erasca Inc. (NASDAQ: ERAS) for alleged federal securities law violations. The lawsuit represents investors who purchased stock between January 14, 2025 and April 26, 2026. Claims center on alleged misrepresentations about ERAS-0015 drug safety and intellectual property protection. Revolution Medicines accused Erasca of patent infringement and trade secret misappropriation regarding the cancer treatment. A patient death and IP disputes caused Erasca's stock to plummet 48%, eliminating $2.8 billion in market capitalization.

CAFC affirmed PTAB's obviousness finding invalidating claims 1-12 of Intellectual Pixels Limited's U.S. Patent 10,681,109 in IPR proceedings brought by Sony Interactive Entertainment. The patent covered digital image generation using external visual servers. On remand from earlier Federal Circuit appeal, PTAB found claims obvious over prior art references Wiltshire and Saha. CAFC rejected IPL's arguments that PTAB exceeded its mandate and lacked substantial evidence, emphasizing that courts review judgments, not opinions.

University at Buffalo Professor Amy Semet's study analyzing 14,000 AI patents litigated in U.S. district courts from 2000-2025 finds AI patents face significantly higher Section 101 subject matter eligibility invalidation rates than non-AI patents, particularly post-Alice v. CLS Bank (2014). Conversely, AI patents show lower obviousness invalidations under Section 103. The research reveals AI patents face a "double hurdle" - harder to keep valid and harder to enforce when valid, creating systematic disadvantages for AI inventions in patent litigation.

Cleveland Medical Devices prevailed in five of six Patent Trial and Appeal Board proceedings against ResMed's inter partes review petitions challenging patents in their Ohio litigation. PTAB found ResMed failed to establish unpatentability in four final written decisions and denied institution in a fifth proceeding. ResMed won one proceeding. The PTAB rulings addressed patentability only, not infringement or damages. District court cases involving Cleveland Medical Devices' CPAP and home-sleep-testing patents against ResMed remain pending in Ohio and Delaware.

Wolfspeed filed a patent infringement lawsuit against Navitas Semiconductor in U.S. District Court for Delaware, alleging Navitas' GaNFast, GaNSlim, GaNSafe, GeneSiC, and SiCPAK product families violate multiple Wolfspeed patents related to gallium nitride and silicon carbide technologies. Wolfspeed seeks to protect its wide-bandgap semiconductor intellectual property. Navitas rejected the allegations as without merit and plans vigorous defense. The lawsuit pressured Navitas stock amid investor concerns about legal costs and business disruption.

Federal Circuit affirmed PTAB's invalidation of Intellectual Pixels' patent claims against Sony Interactive Entertainment, ruling PTAB did not violate prior remand mandate. Federal Circuit upheld Delaware district court's JMOL invalidating Wyeth's cancer treatment patent claims under Section 112 for lack of enablement against AstraZeneca. Sixth Circuit affirmed summary judgment for MillerKnoll in trademark dispute over Bubble Lamp IP against Nelson estate heirs. Multiple Section 101 rulings invalidated patent claims for Wolverine Barcode and Empower Tribe.