Title 35 › Part PART III— - PATENTS AND PROTECTION OF PATENT RIGHTS › Chapter CHAPTER 29— - REMEDIES FOR INFRINGEMENT OF PATENT, AND OTHER ACTIONS › § 292
You cannot mark, attach, or use in ads the patent owner's name, a patent number, or words saying something is patented on items you make, use, sell, offer to sell, or import into the United States unless the patent owner agrees, if your goal is to copy the owner's mark or trick people into thinking the owner approved the item. You also cannot label an unpatented item as patented, or say a patent application was filed or is still pending, when that is not true and you mean to deceive people. Each such offense can carry a fine of up to $500, and only the United States can collect that fine. A business that is hurt by this kind of false marking can sue in federal court to recover money to make up for the harm. It is not illegal to mark a product with information about a patent that once covered it but has since expired.
Full Legal Text
Patents — Source: USLM XML via OLRC
Legislative History
Reference
Citation
35 U.S.C. § 292
Title 35 — Patents
Last Updated
Apr 6, 2026
Release point: 119-73