Industry Sector

Computer memory devices — US PTAB Patent Cases

6 decisions indexed

Page 1 of 1 · 6 total

patent all challenged claims unpatentable

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

· IPR2026-00018

The PTAB held that all 20 claims of Netlist’s ’160 patent are obvious over prior art combining Kim, Rajan, and Wyman, and therefore unpatentable. Samsung and its Micron co‑petitioners prevailed.

patent all challenged claims unpatentable

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

· PGR2025-00071

The PTAB held that Samsung and its co‑petitioners proved all 34 claims of Netlist’s ’060 memory‑package patent were obvious over a combination of prior‑art references, rendering the claims unpatentable.

patent all challenged claims unpatentable

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

· PGR2026-00001

The PTAB held that all 20 claims of Netlist’s ’160 memory‑package patent are obvious over the combined teachings of Kim, Rajan, and Wyman, rendering them unpatentable. Samsung and its Micron co‑petitioners prevailed.

patent all challenged claims unpatentable

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

· IPR2025-01431

The PTAB held that Samsung’s challenge to Netlist’s ’160 memory‑package patent succeeded, finding all 20 claims obvious over Kim, Rajan, and Wyman. The decision invalidates the entire patent.

patent all challenged claims unpatentable

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

· IPR2025-01431

The PTAB held that all 34 claims of Netlist's ’060 memory‑package patent are obvious over prior art such as Kim, Rajan, Riho, and Wyman. Samsung and its Micron co‑petitioners prevailed, leading to a complete invalidation of the patent.

patent all challenged claims unpatentable

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

· IPR2026-00018

In IPR2026‑00018 the PTAB held that Samsung and its Micron co‑petitioners proved all 34 claims of Netlist’s ’060 memory‑package patent obvious over a combination of Kim, Rajan, Riho and Wyman. The Board adopted the district‑court claim constructions and rejected Netlist’s arguments about non‑DRAM limitations and collision risks.

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