---
kind: "unit"
title: "37"
title_heading: "Patents, Trademarks, and Copyrights"
key: "chI"
level: "chapter"
label: "Chapter I"
heading: "United States Patent and Trademark Office, Department of Commerce"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/37/chI"
sections_count: 929
---

# Chapter I — United States Patent and Trademark Office, Department of Commerce

Title 37 C.F.R. — Patents, Trademarks, and Copyrights

## Contents

- [Subchapter A — General](/cfr/37/chI-subchA.md)
- [Subchapter B — Administration](/cfr/37/chI-subchB.md)
- [Subchapter C — Protection of Foreign Mask Works](/cfr/37/chI-subchC.md)