US PTAB IP Litigation

Google LLC v.DH International Ltd.

DH International Ltd. seeks Director Review of the PTAB’s decision to institute an IPR against its Bluetooth‑related patent, arguing the Board used an improper subjective standard and that the cited prior art does not teach the required activation cue.

Google LLC v.DH International Ltd.

Google filed an authorized response defending the Board’s decision to institute an IPR against DH International’s patent, rejecting claims of abuse of discretion and improper pre‑institution briefing.

Google LLC v.DH International Ltd.

The patent owner seeks Director Review, asserting the PTAB misinterpreted “close proximity” and the activation cue in its Bluetooth‑based data‑exchange patent. It claims the Board’s reliance on Mooney and Lee references is unsupported, urging reversal of the unpatentability finding for claims 1‑20.

Par-Kan Company, LLC et al. v.Unverferth Mfg. Co., Inc.

· IPR2024-01427

Par‑Kan has filed an IPR petition seeking to invalidate claims 10‑21 of U.S. Patent 9,745,123, arguing they are obvious over earlier seed‑handling manuals and patents. The petition argues that discretionary‑denial factors do not support a denial and requests institution.

Google LLC v.DH International Ltd.

· IPR2024-01321

Google has filed an IPR petition seeking to invalidate all 13 claims of DH International’s ’333 smart‑card patent, arguing they are obvious over a combination of prior‑art smart‑card references. The petition also challenges any discretionary denial of institution.

Par-Kan Company, LLC et al. v.Unverferth Mfg. Co., Inc.

· IPR2024-01426

Par‑Kan has filed an IPR petition seeking to invalidate claims 16‑23 of Unverferth’s seed‑carrier patent, arguing obviousness over several prior‑art manuals and patents. The petition also argues that discretionary denial factors weigh against a denial, urging the Board to institute the review.

Curio Bioscience et al. v.Prognosys Biosciences Inc. et al.

· IPR2024-01289

Curio Bioscience has filed an IPR petition seeking cancellation of 17 claims of the ‘022 patent covering spatially encoded biological assays, arguing obviousness over Cantor and Armani and anticipation by Frisen.

Amazon.com, Inc. et al. v.NL Giken Inc.

· IPR2024-01345

Amazon and affiliates petition PTAB to invalidate NL Giken’s ’968 patent, alleging all 12 claims are obvious over prior art such as Lee and Hunt. The petition also argues discretionary denial is not warranted.

Google LLC v.DH International Ltd.

Google has filed an IPR petition seeking to invalidate all 20 claims of DH International’s ’294 patent covering multimode cellular phone data switching, arguing that Mooney and Lee disclose the same features and that discretionary denial is unwarranted.

Par-Kan Company, LLC et al. v.Unverferth Mfg. Co., Inc.

· IPR2024-01427

The PTAB denied the institution of an IPR challenging claims in a seed carrier patent (9745123). The Patent Owner successfully demonstrated that their prototype predated the prior art references cited by the Petitioner.

patent instituted · Nov 9, 2024

Par-Kan Company, LLC et al. v.Unverferth Mfg. Co., Inc.

· IPR2024-01426

The PTAB denied Par-Kan Company's IPR against Unverferth Mfg. Co.'s patent 8967940, finding that the petitioner failed to demonstrate a reasonable likelihood of prevailing over prior art references like Morris and Hiniker Webpage.

Amazon.com, Inc. et al. v.NL Giken Inc.

· IPR2024-01345

Amazon successfully convinced the PTAB to institute an IPR against NL Giken's patent, asserting obviousness over prior art references Lee and Hunt. The Board found a reasonable likelihood of prevailing on all 12 challenged claims, advancing the case toward trial.

patent instituted · Nov 9, 2024

Google LLC v.DH International Ltd.

Google LLC successfully petitioned the PTAB to challenge DH International Ltd.'s patentability, leading the Board to institute IPR proceedings on all 20 claims. The Board adopted a broad construction of 'activation cue' favorable to Google and found that the Petitioner met the standard for institution based on obviousness grounds over prior art references Mooney and Lee.

Google LLC v.DH International Ltd.

· IPR2024-01321

Google LLC's IPR challenge against DH International Ltd.'s payment card patent was denied by the PTAB. The Board found that Google failed to establish a reasonable likelihood of prevailing, specifically regarding the obviousness claims over Ong and Hoff.

patent Final Written Decision · Nov 9, 2024

Curio Bioscience et al. v.Prognosys Biosciences Inc. et al.

· IPR2024-01289

The PTAB denied the IPR petition brought by Curio Bioscience against Prognosys and 10X Genomics, finding that the challenged claims were not obvious over Cantor or anticipated by Frisen. The Board upheld the Patent Owner's position regarding spatial analysis in tissue samples.

Google LLC v.DH International Ltd.

The PTAB issued a Final Written Decision finding that all 20 claims of the '294 patent were unpatentable over prior art references Mooney and Lee. The Board successfully construed key terms like 'activation cue' functionally, agreeing that a quality Bluetooth signal satisfies this requirement.

patent · Nov 7, 2024

Dyson Technology Limited et al. v.Omachron Intellectual Property Inc. et al.

patent terminated or settled · Nov 7, 2024

Dyson and Omachron have settled their dispute over U.S. Patent 11,903,546 and jointly moved to terminate the inter partes review. The motion cites statutory authority and prior Board guidance to support termination.

Dyson Technology Limited et al. v.Omachron Intellectual Property Inc. et al.

Dyson and Omachron settled their PTAB inter partes review disputes, leading to termination of four IPRs covering Dyson vacuum technology patents. The settlement agreement is treated as confidential business information.

patent · Nov 7, 2024

Dyson Technology Limited et al. v.Omachron Intellectual Property Inc. et al.

patent null · Nov 7, 2024

Dyson and Omachron have settled their IPR dispute over U.S. Patent 11,903,546 and jointly request the Board to terminate the proceeding and keep the settlement agreement confidential.

Dyson Technology Limited et al. v.Omachron Intellectual Property Inc. et al.

patent instituted · Nov 7, 2024

Dyson Technology Limited filed an Initial Petition challenging 15 claims of Omachron Intellectual Property Inc.'s patent related to hand vacuum cleaner configuration. The petition asserts that the challenged claims are obvious, relying on two distinct combinations of prior art references.

Dyson Technology Limited et al. v.Omachron Intellectual Property Inc. et al.