The invalidation of this patent removes a key piece of litigation exposure for AMD in the Western District of Texas case. Monitor for any appeal by the patent owner to the Federal Circuit, which could revive the patent claims.
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Executive Summary
The PTAB issued a Final Written Decision in IPR2025-00916, holding all challenged claims (1–20) of U.S. Patent 11,811,582 B2 ('Cluster Computing') unpatentable as obvious. AMD was a co-petitioner alongside Intel, and the patent owner is Advanced Cluster Systems, Inc. The decision eliminates a patent that was asserted against AMD in a parallel district court case (W.D. Tex.), removing a potential infringement liability.
PTAB Trial Details
Key Facts
- Final Written Decision finding claims 1–20 of U.S. Patent 11,811,582 B2 unpatentable under 35 U.S.C. § 103.
- AMD was a petitioner (alongside Intel) in this IPR; the patent owner is Advanced Cluster Systems, Inc.
- The patent was asserted against AMD in Advanced Cluster Sys., Inc. v. Advanced Micro Devices, Inc., No. 7:24-cv-00244 (W.D. Tex.).
- The Board found the challenged claims obvious over combinations including Menon, Trefethen, RS6000, MPIref, and POEref.
- AMD was terminated as a petitioner party earlier in the proceeding (Paper 20), but remains a real party-in-interest and benefits from the estoppel effect.
Financial Impact
Removes potential infringement liability in a pending district court case; no specific damages amount stated in the decision.
Risk Factors
- Patent owner may appeal the decision to the Federal Circuit, potentially reversing the unpatentability finding.
- Other related patents in the same family (e.g., U.S. Patent 10,333,768) are still being challenged in separate proceedings and could remain asserted.
- The district court case may continue on other grounds or claims not covered by this IPR.
Investment Themes
Documents Analyzed
This report is based on 1 PTAB decision.
| Document | Accession Number |
|---|---|
| PTAB-TRIAL Data (Synthetic) | ptab-IPR2025-00916-fwd-AMD |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 22, 2026 3d ago | Institutional Cluster | $505.74 | awaiting T+60 | — | $516.79 (+2.18%) |
Oct 21, 2026 5d ago | PTAB Trial | $507.93 | awaiting T+60 | — | $516.79 (+1.74%) |
Oct 20, 2026 6d ago | PTAB Trial | $552.72 | awaiting T+60 | — | $516.79 (−6.50%) |
Oct 19, 2026 7d ago | PTAB Trial | $534.74 | awaiting T+60 | — | $516.79 (−3.36%) |
Oct 19, 2026 7d ago | PTAB Trial | $534.74 | awaiting T+60 | — | $516.79 (−3.36%) |
Sep 28, 2026 27d ago | Press Release | $607.57 | awaiting T+60 | — | $516.79 (−14.94%) |
Sep 17, 2026 5w ago | Insider Cluster | $559.82 | awaiting T+60 | — | $516.79 (−7.69%) |
Aug 27, 2026 8w ago | Insider Cluster | $465.58 | awaiting T+60 | — | $516.79 (−11.00%) |
Aug 26, 2026 8w ago | Insider Cluster | $476.67 | awaiting T+60 | — | $516.79 (+8.42%) |
Aug 21, 2026 9w ago | ANALYST-UPGRADE | $473.25 | awaiting T+60 | — | $516.79 (+9.20%) |
US Market Status
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