Industry Sector

Computer memory — US PTAB Patent Cases

44 decisions indexed

Page 2 of 2 · 44 total

patent all challenged claims unpatentable · Jul 11, 2025

Samsung Electronics Co., Ltd. et al. v.Netlist, Inc.

· PGR2026-00001

The PTAB held that Samsung and its co‑petitioners proved the Netlist ’054 flash‑DRAM hybrid memory claims are obvious over Harris, JEDEC FBDIMM standards, Amidi’s battery‑backup design, and Hajeck’s power‑anomaly protection, rendering all 30 claims unpatentable.

patent all challenged claims unpatentable · Jul 11, 2025

Samsung Electronics Co., Ltd. et al. v.Netlist, Inc.

· IPR2026-00018

The PTAB held that all 35 claims of Netlist’s ’339 memory‑module patent are obvious over the Ellsberry and Halbert references. Samsung and its co‑petitioners prevailed, and the claims were declared unpatentable.

patent all challenged claims unpatentable · Jul 11, 2025

Samsung Electronics Co., Ltd. et al. v.Netlist, Inc.

· IPR2026-00018

Samsung and Micron successfully challenged Netlist’s U.S. Patent 11,093,417, leading the PTAB to find all fifteen claims unpatentable based on obviousness over the Perego disclosure and JEDEC DDR2 standards.

patent all challenged claims unpatentable · Jul 11, 2025

Samsung Electronics Co., Ltd. et al. v.Netlist, Inc.

· IPR2026-00018

Samsung successfully challenged claim 16 of Netlist’s ’912 memory‑module patent, with the PTAB finding the claim obvious over the Ellsberry reference and unpatentable.

patent all challenged claims unpatentable · Jul 11, 2025

Samsung Electronics Co., Ltd. et al. v.Netlist, Inc.

· IPR2026-00018

Samsung and Micron successfully challenged Netlist’s 9,858,215 B1 memory‑module patent. The PTAB found all 29 claims obvious over Perego and the JEDEC DDR2 standard, rendering them unpatentable.

patent · Dec 26, 2024

Phison Electronics Corporation v.Vervain, LLC

· PGR2025-00010

Phison Electronics files a PGR petition to invalidate Vervain’s 11,830,546 NAND‑flash memory patent, asserting abstractness, lack of written description, indefiniteness and obviousness. The petition leans on an expert declaration and extensive prior‑art citations.

patent instituted · Oct 24, 2024

Samsung Electronics Co., Ltd. et al. v.Netlist, Inc.

· IPR2025-00002

The PTAB instituted an IPR against Netlist’s ’218 memory‑module patent after finding Samsung’s petition showed a reasonable likelihood of success on all 22 claims, based on obviousness over Hazelzet combined with JEDEC, Buchmann, and Kim.

patent instituted · Oct 24, 2024

Samsung Electronics Co., Ltd. et al. v.Netlist, Inc.

· IPR2025-00002

The PTAB instituted an IPR against Netlist’s ’595 memory‑module patent after finding Samsung’s petition showed a reasonable likelihood of unpatentability based on obviousness over Hazelzet, JEDEC, Buchmann, and Kim references.

patent · Oct 1, 2024

Micron Technology, Inc. et al. v.Netlist, Inc.

· IPR2024-00370

Micron seeks to invalidate five claims of Netlist’s memory‑module patent, arguing anticipation and obviousness over Osanai, Tokuhiro, and Takefman references, and requests the PTAB to institute the IPR.

patent all challenged claims unpatentable · Oct 1, 2024

Micron Technology, Inc. et al. v.Netlist, Inc.

· IPR2024-00370

Samsung and Micron successfully challenged Netlist’s ’506 patent, leading the PTAB to find all 20 claims unpatentable as obvious over prior‑art memory‑module techniques.

patent · Oct 1, 2024

Micron Technology, Inc. et al. v.Netlist, Inc.

· IPR2024-00370

Micron has filed a petition for Director Review seeking reversal of the PTAB’s discretionary denial to join Samsung’s IPR against Netlist’s memory‑module patent. The request centers on the inapplicability of General Plastic factors to me‑too joinder petitions.

patent instituted · Oct 1, 2024

Micron Technology, Inc. et al. v.Netlist, Inc.

· IPR2024-00370

The PTAB instituted an inter‑partes review of Netlist’s ’608 memory‑module patent on claims 1‑5 after Samsung’s petition showed a reasonable likelihood of unpatentability under obviousness.

patent instituted · Aug 10, 2024

Samsung Electronics Co., Ltd. et al. v.Netlist, Inc.

· IPR2025-00001

The PTAB instituted an IPR against Netlist’s ’218 memory‑module patent after finding Samsung’s petition showed a reasonable likelihood of success on at least one claim.

patent instituted · Aug 10, 2024

Samsung Electronics Co., Ltd. et al. v.Netlist, Inc.

· IPR2025-00001

The PTAB instituted an inter partes review of Netlist’s ’595 memory‑module patent after finding Samsung’s petition showed a reasonable likelihood of unpatentability for all 24 claims. The Board declined to exercise discretionary denial under §§ 314(a) and 325(d).

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