---
kind: "unit"
title: "35"
title_heading: "Patents"
key: "ptIII/ch30"
level: "chapter"
label: "Chapter 30"
heading: "Prior Art Citations to Office and Ex Parte Reexamination of Patents"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/35/ptIII-ch30"
sections_count: 7
---

# Chapter 30 — Prior Art Citations to Office and Ex Parte Reexamination of Patents

Title 35 — Patents › Part III — Patents and Protection of Patent Rights

## Sections

- [§301. Citation of prior art and written statements](/usc/35/301.md)
- [§302. Request for reexamination](/usc/35/302.md)
- [§303. Determination of issue by Director](/usc/35/303.md)
- [§304. Reexamination order by Director](/usc/35/304.md)
- [§305. Conduct of reexamination proceedings](/usc/35/305.md)
- [§306. Appeal](/usc/35/306.md)
- [§307. Certificate of patentability, unpatentability, and claim cancellation](/usc/35/307.md)