S.D. Tex. P. R. 3-7 — Amendments to Contentions By Leave of Court

High confidence· verified September 26, 2026Local Rules

Summary

S.D. Tex. P. R. 3-7 — Amendments to Contentions By Leave of Court: the court's own rule, verbatim from RULES OF PRACTICE FOR PATENT CASES IN THE SOUTHERN DISTRICT OF TEXAS ((Amended April 18, 2022)), official PDF, sha-custodied. Court-level requirement: applies in every case before the U.S. District Court for the Southern District of Texas alongside the federal rules and any judge-specific procedures.

Requirement

(a) Amendment or modification of the Preliminary or Final Infringement Contentions or the Preliminary or Final Invalidity Contentions, other than expressly permitted in P.R. 3-6, may be made only if the presiding judge finds there is good cause for the requested changes. (b) Good cause may include, but is not limited to, newly discovered (1) accused instrumentalities, (2) bases for claiming infringement, or (3) prior art references, provided that good cause may be found only if the party seeking leave to amend shows that it exercised diligence in seeking the newly discovered information or documents.

Source of truth

(a) Amendment or modification of the Preliminary or Final Infringement Contentions or the Preliminary or Final Invalidity Contentions, other than expressly permitted in P.R. 3-6, may be made only if the presiding judge finds there is good cause for the requested changes. (b) Good

Official source: S.D. Tex. — Local & Federal Rules (U.S. District Court, Southern District of Texas)
Source health: Healthy · checked October 4, 2026
Effective date: —
Last verified: September 26, 2026benchpath-appfed-rules-2026-09-25

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