US PTAB IP Litigation

SanDisk and Longitude settled their IPRs over flash‑memory patents before trial, leading the Board to dismiss the petitions and terminate the proceedings.

Sandisk Technologies, Inc. et al. v.Longitude Flash Memory Solutions Ltd. et al.

patent terminated or settled · Mar 9, 2025

SanDisk and Longitude Flash have settled their dispute over U.S. Patent No. 11,456,365 and jointly moved to dismiss the pending IPR. The Board has not yet instituted the review, and the parties rely on statutory authority to terminate the proceeding pre‑institution.

Sandisk Technologies, Inc. et al. v.Longitude Flash Memory Solutions Ltd. et al.

Sandisk and Longitude Flash jointly moved to terminate IPR 2025‑01281, citing a settlement that they want kept confidential under §317. The Board is asked to seal the settlement and end the proceeding.

Generac Power Systems Inc. et al. v.Champion Power Equipment, Inc.

· IPR2025-01271

Harbor Freight, Generac and MWE jointly asked the PTAB to keep their Settlement Agreement (Exhibit 1300) confidential and separate from the patent file. The request cites statutory provisions for limited access and seeks Board notification of any third‑party requests.

Generac Power Systems Inc. et al. v.Champion Power Equipment, Inc.

· IPR2025-01271

Generac, Harbor Freight and MWE have petitioned the PTAB to invalidate Champion Power’s dual‑fuel generator patent (U.S. 10,697,398). The petition alleges anticipation and obviousness over multiple prior‑art references and seeks cancellation of 45 claims.

MWE Investments, LLC et al. v.Champion Power Equipment, Inc.

· IPR2025-01423

MWE Investments and co‑petitioners have filed an IPR petition seeking cancellation of all 11 claims of Champion Power Equipment’s ’654 dual‑fuel generator patent, alleging obviousness and lack of structure under §§103, 102, and 112(f). The Board has yet to decide whether to institute the review.

Sandisk Technologies, Inc. et al. v.Longitude Flash Memory Solutions Ltd. et al.

patent instituted · Mar 9, 2025

SanDisk has filed a petition to invalidate 42 claims of Longitude Flash’s 2022 SONOS memory patent, asserting obviousness over Lee ’255, Lee ’961, and Fujiwara. The petition details claim constructions and cites extensive prior art.

Generac Power Systems Inc. et al. v.Champion Power Equipment, Inc.

· IPR2025-01271

The PTAB granted institution for IPR2025-01271 after finding the petitioner showed a reasonable likelihood of prevailing. Other related proceedings were denied institutional review.

patent denied · Mar 7, 2025

Samsung Electronics Co., Ltd. et al. v.XiFi Networks R&D, Inc.

· IPR2025-01205

XiFi Networks asks the PTAB to vacate the institution of eleven IPRs and PGRs against Samsung, arguing Samsung’s contradictory claim‑construction positions in the district court and before the Board violate recent Revvo precedent. The request seeks out‑of‑time Director Review to terminate the proceedings.

Samsung Electronics Co., Ltd. et al. v.XiFi Networks R&D, Inc.

· IPR2025-01206

The PTAB denied XiFi Networks’ request for Director Review, leaving the institution of multiple IPRs against Samsung Electronics in place. The Board cited lack of good cause for a deadline extension and the Revvo precedent on inconsistent claim constructions.

North Sails Group, LLC v.Team New Zealand Limited et al.

· PGR2025-00062

North Sails has filed a post‑grant review petition challenging Team New Zealand’s high‑performance sail patent (US 12,110,089). The petitioner alleges anticipation, obviousness, indefiniteness, lack of enablement and insufficient written description, citing a range of prior‑art references and prior sales. The PTAB has yet to rule on the petition.

Aesthetic Management Partners, LLC et al. v.HydraFacial LLC

· IPR2025-01169

Aesthetic Management Partners has petitioned the PTAB for Inter Partes Review of HydraFacial’s 9,550,052 microdermabrasion patent, asserting that all 17 claims are obvious over a combination of prior‑art devices.