Title 35 › PART I — UNITED STATES PATENT AND TRADEMARK OFFICE › CHAPTER 2 — PROCEEDINGS IN THE PATENT AND TRADEMARK OFFICE › § 24
When a party asks in a contested Patent and Trademark Office case, the clerk of the U.S. district court must issue a subpoena for any witness in that district to testify before an officer authorized to take depositions and affidavits at the stated time and place. Federal civil‑procedure rules on witnesses and producing documents apply, and witnesses get the same fees and travel expenses as U.S. district court witnesses. A judge may enforce the subpoena, but a witness cannot be held in contempt unless travel costs and one day's attendance is paid or offered when the subpoena is served. A witness may refuse to disclose a secret unless the issuing court orders disclosure.
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Patents, Source: USLM XML via OLRC
Legislative History
Reference
Citation
35 U.S.C. § 24
Title 35, Patents
Last Updated
Aug 21, 2026
Release point: 119-102