Data storage — US PTAB Patent Cases
27 decisions indexed
Page 1 of 1 · 27 total
Resonac Hard Disk Corporation et al. v.MR TECHNOLOGIES GMBH
Exhibit 1042 presents aggregate PTAB IPR statistics for hard‑disk patents, noting a 100% institution rate across 4,148 trials. Twenty percent of those trials produced mixed claim findings, while the majority favored the petitioner.
Samsung Electronics Co., Ltd. et al. v.Radian Memory Systems LLC
Samsung has filed an IPR petition challenging Radian Memory’s ’772 SSD management patent, asserting that its claims are obvious over a suite of prior‑art references. The petition seeks to invalidate the claims covering zone‑based flash memory techniques.
Western Digital Technologies et al. v.Godo Kaisha IP Bridge 1
Western Digital’s IPR petition challenging a magnetic tunnel junction patent was denied, as the Board found the obviousness arguments unpersuasive. No claims were instituted for review.
Kingston Technology Company, Inc., Kingston Technology Corporation, and Kingston Digital, Inc. v.Vervain, LLC
The PTAB denied Kingston Technology’s request to institute a post‑grant review of six claims of a NAND‑flash patent, finding the challenger’s arguments on written description, indefiniteness, and obviousness insufficient.
Sandisk Technologies, Inc. et al. v.Polaris PowerLED Technologies, LLC
Sandisk and Western Digital have petitioned the PTAB to institute an IPR against Polaris PowerLED’s ’346 patent, asserting that its parity‑generation claims are obvious over multiple prior‑art references. The petition argues that the claimed on‑the‑fly techniques and command distribution were well‑known and that discretionary denial is not warranted.
Phison Electronics Corporation v.Vervain, LLC
The PTAB denied Phison Electronics' request to institute a post‑grant review of six claims of its mixed‑level NAND flash memory patent, finding the petitioner had not shown any claim likely unpatentable.
Phison Electronics Corporation v.Vervain, LLC
Phison Electronics has filed a post‑grant review petition seeking cancellation of Vervain’s 11,830,546 NAND‑flash patent. The petitioner alleges the claims are abstract, lack written description, are indefinite, and are obvious over prior art. The Board must decide whether to institute the review.
Google LLC et al. v.Truesight Communications LLC
Samsung’s petition to invalidate Truesight’s virtual SD‑card patent was denied by the PTAB, which exercised its discretion under § 314(a) after weighing the six Fintiv factors and finding the parallel district‑court litigation outweighed the petition’s merits.
Phison Electronics Corporation v.Vervain, LLC
The PTAB denied Phison's request for post‑grant review of claims 1‑6 of U.S. Patent 11,854,612, finding the petitioner failed to show any claim was likely unpatentable.
Phison Electronics Corporation v.Vervain, LLC
The PTAB denied Phison Electronics’ petition for post‑grant review of Vervain’s NAND‑flash patent, finding the challenger failed to meet the ‘more likely than not’ burden. The Board upheld the patent’s claims across all seven challenged claims.
Tessell, Inc. v.Nutanix, Inc.
The Director denied institution of an IPR in the Tessell v. Nutanix case, citing administrative inefficiency because the petitioner includes nearly all inventors of the challenged patent.
PHISON ELECTRONICS CORPORATION v.Vervain, LLC
The PTAB denied Phison Electronics’ post‑grant review petition against Vervain’s 11,830,546 patent covering a mixed‑level NAND flash storage system. The Board found Phison’s evidence insufficient to meet the “more likely than not” standard for any of the asserted grounds. No institution was ordered.
PHISON ELECTRONICS CORPORATION v.Vervain, LLC
The PTAB denied Phison Electronics Corporation's request to institute IPR against Vervain, LLC's patent 8,891,298. The denial was based on the Fintiv factors, primarily due to significant overlap with ongoing parallel district court litigation.
Western Digital Technologies, Inc. et al. v.Godo Kaisha IP Bridge 1
Western Digital seeks to have the PTAB vacate an instituted IPR on its MTJ hard‑drive patent, arguing that piecemeal review undermines the AIA and that the district court is the proper forum.
Western Digital Technologies, Inc. et al. v.Godo Kaisha IP Bridge 1
Western Digital filed an authorized response urging the PTAB to deny IP Bridge’s Director Review request. The brief argues that IP Bridge ignored Board guidance and provides no basis for vacating the institution decisions.
PHISON ELECTRONICS CORPORATION v.Vervain, LLC
PHISON ELECTRONICS CORPORATION's petition challenging Vervain, LLC's NAND Flash Memory patent was denied by the PTAB. The Board found the specification sufficiently supported the claims against indefiniteness and written description challenges, and Petitioner failed to meet the likelihood standard for obviousness.
Samsung Electronics Co., Ltd. et al. v.SiOnyx, LLC
Samsung and SiOnyx jointly moved to terminate the IPR over patent 11,069,737 before any trial. The Board granted the motion, dismissing the petition under 35 U.S.C. § 317(a).
Western Digital Technologies, Inc. et al. v.Godo Kaisha IP Bridge 1
The USPTO denied director review requests for three IPRs, including Western Digital's data‑storage patent, leaving the institution decisions intact.
Western Digital Technologies, Inc. et al. v.Godo Kaisha IP Bridge 1
Western Digital’s IPR against a magnetic tunnel junction patent was instituted, but the patent owner seeks Director review to vacate the institution, arguing that piecemeal review of one of nine related patents is inefficient and contrary to AIA policy.
Western Digital Technologies, Inc. et al. v.Godo Kaisha IP Bridge 1
Western Digital filed an authorized response opposing IP Bridge’s request for Director Review of the PTAB’s institution of IPR2024-01447. The company contends the request lacks any showing of error or abuse of discretion and should be denied.
Silicon Motion Inc. et al. v.K. Mizra LLC
Silicon Motion and K. Mizra settled their IPR dispute over U.S. Patent 9,111,608. The Board terminated the proceeding without deciding the merits, treating the settlement agreement as confidential.
Phison Electronics Corporation v.Vervain, LLC.
The PTAB denied the petition challenging a NAND Flash Memory System patent based on grounds including 101, 112, and 103. The Board found that the claims were directed toward a technological improvement in memory storage and adequately supported by the specification.
Silicon Motion Inc. et al. v.K. Mizra LLC
Silicon Motion and K. Mizra settled their IPR dispute over U.S. Patent 9,160,466. The Board terminated the proceeding without a merits decision, treating the settlement agreement as confidential.
Silicon Motion Inc. et al. v.K. Mizra LLC
Silicon Motion and K. Mizra filed a joint request to treat their settlement agreement as confidential and to dismiss the pending IPR. The motion cites statutory confidentiality protections.
Phison Electronics Corporation v.Vervain, LLC
The PTAB denied Phison Electronics' request to institute a post‑grant review of Vervain's 11,854,612 patent covering mixed‑level NAND flash memory, finding the petitioner had not shown any claim to be unpatentable.
Samsung Electronics Co. Ltd et al. v.Maxell, Ltd.
The USPTO denied Samsung's request for Director Review of the institution decision in IPR2024-00777, leaving the institution of Maxell's patent 11,017,815 B2 in place.
Phison Electronics Corporation v.Vervain, LLC
The PTAB denied Phison Electronics’ request to institute a post‑grant review of Vervain’s ’612 NAND‑flash memory patent, finding the challenger’s unpatentability arguments unpersuasive.
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