US PTAB Patent Cases
8,722 decisions indexed
Page 55 of 291 · 8,722 total
Ascentcare Dental Products, Inc. v.Solmetex, LLC
Ascentcare Dental Products has filed an IPR petition seeking cancellation of 29 claims of Solmetex’s intraoral device patent, alleging obviousness over multiple prior‑art references. The petition lists ten distinct grounds, each tying claim groups to references such as Black, Park, Baughan, Johnson, Hirsch, and Zheng.
Ascentcare Dental Products, Inc. v.Solmetex, LLC
Ascentcare Dental Products, Inc.'s IPR petition against Solmetex, LLC's dental device patent was denied by the PTAB. The Board ruled that Petitioner failed to provide sufficient evidence regarding obviousness over prior art references like Black and Park/Baughan/Johnson.
Merck Sharp & Dohme LLC v.Halozyme, Inc. et al.
Merck has filed a post‑grant review petition challenging Halozyme’s U.S. Patent 12,077,791 covering modified PH20 hyaluronidase proteins. The petition asserts that the claims are overly broad and lack both written description and enablement under 35 U.S.C. §112(a). Merck seeks institution of the proceeding and cancellation of all claims.
Google LLC v.Sandpiper CDN, LLC
Google has filed an IPR petition seeking cancellation of all 19 claims of Sandpiper's 8,719,886 patent covering video‑stream delivery and targeted advertising. The petition argues the claims are obvious over a combination of prior‑art references (Acharya, Carle, Schein, Fransdonk) and cites favorable institution factors.
Google LLC v.Bootler, LLC
Google has filed a petition for inter partes review seeking to invalidate all 17 claims of Bootler’s food‑delivery data‑aggregation patent, arguing obviousness over four prior‑art references and asserting no discretionary denial grounds.
Google LLC v.Sandpiper CDN, LLC
Google has filed an IPR petition seeking to invalidate Sandpiper CDN’s 8,595,778 patent covering video‑stream authorization, asserting anticipation and obviousness over multiple prior‑art references.
Merck Sharp & Dohme LLC v.Halozyme, Inc. et al.
Merck Sharp & Dohme LLC successfully petitioned the PTAB to challenge Halozyme's PH20 polypeptide claims under 35 U.S.C. § 112 for lack of written description and enablement. The Board instituted the petition, finding that the specification broadly defines a 'modified PH20 polypeptide' but lacked sufficient examples to support the vast scope of multiply-substituted variants claimed.
Toyota Motor Corp. v.AutoConnect Holdings LLC
Toyota Motor Corp. has filed a post‑grant review petition seeking cancellation of AutoConnect Holdings’ U.S. Patent No. 12,039,243 covering vehicle user‑profile systems. The petitioner alleges the claims are abstract and obvious over multiple prior‑art references.
Samsung Electronics Co., Ltd. et al. v.GenghisComm Holdings, LLC
Samsung Electronics has filed an IPR petition challenging 18 claims of GenghisComm’s ’285 patent covering OFDM techniques. The petition alleges anticipation and obviousness over multiple prior‑art references and argues that a discretionary denial is unwarranted.
Samsung Electronics Co., Ltd. et al. v.GenghisComm Holdings, LLC
Samsung has filed an IPR petition challenging 19 claims of GenghisComm’s ’005 OFDM patent, arguing anticipation and obviousness over multiple prior‑art references. The petition also argues the patent is post‑AIA and that discretionary denial is unwarranted.
Toyota Motor Corp. v.AutoConnect Holdings LLC
Toyota Motor Corp. successfully petitioned to challenge AutoConnect Holdings LLC's patent, leading the PTAB to institute proceedings on grounds of obviousness (103) and patent eligibility (101). The Board found it likely that multiple claims are unpatentable over prior art references like Hendry.
Ascend Elements, Inc. v.Duesenfeld GmbH
Petition for inter partes review of U.S. Patent 12,119,463 filed by Ascend Elements against Duesenfeld GmbH.
Merck Sharp & Dohme LLC v.Halozyme, Inc. et al.
Merck has filed a post‑grant review petition challenging Halozyme’s enzyme‑based contraceptive patent, arguing that the claims lack sufficient written description and enablement. The reply emphasizes the vast, undefined genus of modified PH20 polypeptides and the impossibility of testing all variants.
Kahoot! AS et al. v.interstellar inc.
Interstellar Inc. submits a response urging the PTAB to deny Kahoot!’s request for Director Review of the discretionary denial in IPR2025‑00696. The owner contends the Director’s discretion is broad, there is no six‑year bright‑line rule for settled expectations, and the petitioner’s arguments are repetitive and unsupported.
Kahoot! AS et al. v.interstellar inc.
Kahoot! has filed a Request for Director Review challenging the PTAB’s denial of institution for its IPR against Interstellar’s ’825 patent, arguing the six‑year settled‑expectations rule was misapplied.
Kahoot! AS et al. v.interstellar inc.
The USPTO denied Kahoot!’s request for Director Review of the decision that refused to institute an IPR against Interstellar’s patent. The denial leaves the original institution denial intact.
Skullcandy Inc. et al. v.Earin AB
Skullcandy’s petition to invalidate Earin’s wireless‑earbud patent was denied. The Board concluded the prior art did not teach key claim limitations, so no reasonable likelihood of success was shown.
Kahoot! AS et al. v.interstellar inc.
Kahoot! filed a request for Director Review of the PTAB institution decision, arguing the filing is timely and requesting correction of the document type and fee payment assistance.
Tesla, Inc. v.Intellectual Ventures II LLC
Tesla and patent‑assertion entity Intellectual Ventures II have jointly moved to dismiss the IPR and terminate the proceeding after resolving the dispute in a parallel district‑court case. The motion cites Board authority and the early, unbriefed status of the IPR as reasons for dismissal.
Advanced Micro Devices, Inc. et al. v.Concurrent Ventures, LLC et al.
Patent owners seek rehearing to overturn the PTAB's denial of discretionary denial, arguing that a June 2026 trial in the parallel district court precedes the PTAB's final decision deadline, invoking Fintiv factors. They reference a prior Director decision in a related IPR that denied institution under similar circumstances.
Advanced Micro Devices, Inc. et al. v.Concurrent Ventures, LLC et al.
The USPTO Director has initiated a sua sponte review of three IPR institution decisions after the Patent Owner claimed the Petitioners violated a Sotera stipulation by litigating the same invalidity issues in district court. The parties may file brief arguments, and the proceedings are stayed pending the Director’s opinion.
Advanced Micro Devices, Inc. et al. v.Concurrent Ventures, LLC et al.
AMD and Pensando’s IPR petition against the ’596 patent is challenged by Concurrent Ventures and XtreamEdge, who argue the petition fails to identify claim construction and does not show prior art meets the claimed hardware queue limitations, seeking a discretionary denial of institution.
Advanced Micro Devices, Inc. et al. v.Concurrent Ventures, LLC et al.
The USPTO denied AMD and Pensando's request for rehearing of a Director discretionary denial in IPR2025-00478 concerning patent 8,924,596. The order affirms the original decision without further review.
Ascend Elements, Inc. v.Duesenfeld GmbH
Ascend Elements has filed a PGR petition seeking cancellation of Duesenfeld’s battery‑recycling patent. The petition alleges obviousness over multiple prior‑art references and indefiniteness of key claim language.
Merck Sharp & Dohme LLC v.Halozyme, Inc. et al.
Merck has filed a post‑grant review petition challenging Halozyme’s U.S. Patent 12,049,652 covering engineered PH20 hyaluronidase proteins. The petition asserts lack of written description, lack of enablement, and obviousness of key mutants. The Board has not yet ruled on the petition.
Kahoot! AS et al. v.interstellar inc.
Kahoot! has filed an IPR petition seeking cancellation of 14 claims of Interstellar’s ’825 patent, arguing that the claims are obvious over multiple prior‑art references and that discretionary denial under the Fintiv factors is inappropriate.
Skullcandy Inc. et al. v.Earin AB
Skullcandy has filed an IPR petition seeking to invalidate claims 20 and 21 of Earin's 9,402,120 wireless‑earbud patent. The petition relies on three obviousness grounds using Olodort, Guccione, Yamashita and the Bluetooth Spec. 4.1 as prior art. The Board is asked to institute the review.
Microsoft Corporation et al. v.Dialect, LLC
Microsoft has filed a petition to invalidate Dialect’s 607 patent covering multimodal speech processing, arguing obviousness over Maes and a combination of Maes, Coffman, and Ittycheriah, and urging the PTAB to institute review.
Tesla, Inc. v.Intellectual Ventures II LLC
Tesla has filed an IPR petition seeking to invalidate claims 1‑2, 5, 7‑8, and 11 of Intellectual Ventures’ ’395 patent on the ground of obviousness over Moir and Martínez. The petition also argues that discretionary denial is unwarranted.
BOE Technology Group Co., Ltd. v.Optronic Sciences LLC
BOE Technology Group has filed an IPR petition seeking cancellation of all 21 claims of Optronic Sciences' OLED pixel‑driving patent. The petition relies on three prior‑art references—Kim406, Kim730, and Senda—to argue anticipation and obviousness under §§ 102 and 103.
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