Home › USC › Title 35 › Chapter 3035 U.S.C. Chapter 30 — PRIOR ART CITATIONS TO OFFICE AND EX PARTE REEXAMINATION OF PATENTS§ 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