U.S. Code / Title 35 — Patents / Part III—Patents and Protection of Patent…Title 35ChapterChapter 30—Prior Art Citations to Office and Ex Parte Reexamination of PatentsContents§ 301. Citation of prior art and written statements§ 302. Request for reexamination§ 303. Determination of issue by Director§ 304. Reexamination order by Director§ 305. Conduct of reexamination proceedings§ 306. Appeal§ 307. Certificate of patentability, unpatentability, and claim cancellation