Phillips Standard of Claim Construction to Be Used by Ptab in Aia Proceedings
Contributed by Schwegman Lundberg & Woessner. Originally published on Patexia; republished here as part of the LexDana archive.
After much deliberation, the USPTO has published a Final Rule mandating that the claim construction standard articulated by the Fed. Cir. in Phillips v. AWH Corp., 415 f .3d 1301 (Fed. Cir. 2005), and used by federal district courts, will replace the broadest reasonable interpretation (BRI) standard currently used by the PTAB in Inter partes review (IPR), post grant review (PGR) and transitional program for covered business patents (CBM), collectively “AIA Proceedings”. See Fed. Reg., 83, 51340 (October 11, 2018). The Final Rule is applicable to all AIA proceedings petitions filed on or after the effective date of November 13, 2018.
Two points are of some interest and raise some questions. The Phillips standard will not be applied to reissue or ex parte reexamination proceedings, even though the prosecution history is complete regarding the patents under review. One commentator has suggested that the Phillips standard should be applied in prosecution, but at first, I did not see how this is possible with an incomplete prosecution history. But consider; the Examiner uses BRI to interpret the claims and then locates prior art to establish a prima facie case that the claim fails under 102, 103 and/or 112. The Applicant must rebut the rejections, and often uses Phillips-type evidence to meet that burden (such as limiting disclosures in the specification of a prior art patent). So maybe we are closer to the general applicability of the Phillips standard to claim interpretation than we think.
This article was originally published on Patents4Life.com.
Patents4Life is sponsored by Schwegman Lundberg & Woessner, P.A
More insights
Fresh From the Bench: Latest Precedential Patent Case
Ridge Corp. et al. v. Kirk NationaLease Co. et al. , Appeal No. 2025-1254 (Fed. Cir. July 13, 2026) In its only precedential patent opinion last week, the Federal Circuit considered an appeal of a preliminary injunction issued by the U.S. District Court…
Fresh From the Bench: Latest Precedential Patent Cases
CASE OF THE WEEK Wyeth LLC v. AstraZeneca Pharmaceuticals LP , Appeal No. 2024-2325 (Fed. Cir. July 9, 2026) In our Case of the Week, the Federal Circuit affirmed a district court ruling reversing a $107.5 million jury verdict against AstraZeneca in a case…
Enanta Pharmaceuticals, Inc. v. Pfizer Inc., Appeal No. 2025-1427 (Fed. Cir. Jun. 23, 2026)
CASE OF THE WEEK Enanta Pharmaceuticals, Inc. v. Pfizer Inc., Appeal No. 2025-1427 (Fed. Cir. Jun. 23, 2026) In our Case of the Week, the Federal Circuit affirmed summary judgment invalidating all claims of Enanta’s Patent No. 11,358,953 as…