Manual of Patent Examining Procedure (MPEP)
Chapter 2200: Citation of Prior Art and Ex Parte Reexamination of Patents

Ninth Edition of the MPEP, Revision 07.2015, Last Revised in November 2015

Chapter 2200: Citation of Prior Art and Ex Parte Reexamination of Patents

2201: Introduction

2202: Citation of Prior Art and Written Statements

2203: Persons Who May Cite Prior Art or Written Statements

2204: Time for Filing Prior Art or Section 301 Written Statements

2205: Content of Prior Art or Section 301 Written Statements

2206: Handling of Prior Art or Section 301 Written Statements

2207: Entry of Court Decision in Patent File

2208: Service of Prior Art or Section 301 Written Statements on Patent Owner

2209: Ex Parte Reexamination

2210: Request for Ex Parte Reexamination under 35 U.S.C. 302

2211: Time for Requesting Ex Parte Reexamination under 35 U.S.C. 302

2212: Persons Who May File a Request for Ex Parte Reexamination under 35 U.S.C. 302

2212.01: Inquiries from Persons Other Than the Patent Owner

2213: Representative of Requester

2214: Content of Request for Ex Parte Reexamination Filed under 35 U.S.C. 302

2215: Fee for Requesting Ex Parte Reexamination under 35 U.S.C. 302

2216: Substantial New Question of Patentability

2217: Statement Applying Prior Art in a Request Filed under 35 U.S.C. 302

2218: Copies of Prior Art

2219: Copy of Printed Patent

2220: Certificate of Service

2221: Amendments Included in Request Filed under 35 U.S.C. 302 by Patent Owner

2222: Address of Patent Owner

2223: Withdrawal of Attorney or Agent

2224: Correspondence

2225: Untimely Paper Filed Prior to Order under 35 U.S.C. 304

2226: Initial Processing of Request for Ex Parte Reexamination Filed under 35 U.S.C. 302

2227: Incomplete Request for Ex Parte Reexamination Filed under 35 U.S.C. 302

2228: [Reserved]

2229: Notice of Request under 35 U.S.C. 302 for Ex Parte Reexamination in Official Gazette

2230: Constructive Notice to Patent Owner

2231: Processing of Request Corrections

2232: Public Access to Reexaminations Filed under 35 U.S.C. 302

2232.01: Determining if a Reexamination Request Was Filed under 35 U.S.C. 302 for a Patent

2233: Processing in Central Reexamination Unit and Technology Center

2234: Entry of Amendments

2235: Record Systems

2236: Assignment of Reexamination

2237: Transfer Procedure

2238: Time Reporting

2239: Reexamination Ordered at the Director’s Initiative

2240: Decision on Request Filed under 35 U.S.C. 302

2241: Time for Deciding Request Filed under 35 U.S.C. 302

2242: Criteria for Deciding Request Filed under 35 U.S.C. 302

2243: Claims Considered in Deciding Request Filed under 35 U.S.C. 302

2244: Prior Art on Which the Determination Is Based in Requests Filed under 35 U.S.C. 302

2245: Processing of Decision

2246: Decision Ordering Reexamination under 35 U.S.C. 304

2247: Decision under 35 U.S.C. 303 on Request for Reexamination filed Under 35 U.S.C. 302, Request Denied

2247.01: Examples of Decisions on Request for Reexamination

2248: Petition From Denial of Request Filed Under 35 U.S.C. 302

2249: Patent Owner’s Statement in Reexaminations Filed Under 35 U.S.C. 302

2250: Amendment by Patent Owner

2250.01: Correction of Patent Drawings

2250.02: Correction of Inventorship

2250.03: Fees for Adding Claims and for Filing a Petition

2251: Reply by Third Party Requester

2252: Consideration of Statement and Reply

2253: Consideration by Examiner

2254: Conduct of Ex Parte Reexamination Proceedings

2255: Who Reexamines

2256: Prior Art Patents and Printed Publications Reviewed by Examiner in Reexamination

2257: Listing of Prior Art

2258: Scope of Ex Parte Reexamination

2258.01: Use of Previously Cited/Considered Art in Rejections

2258.02: Claiming Foreign Priority and Domestic Benefit in Reexamination

2259: Res Judicata and Collateral Estoppel in Reexamination Proceedings

2260: Office Actions

2260.01: Dependent Claims

2261: Special Status for Action

2262: Form and Content of Office Action

2263: Time for Response

2264: Mailing of Office Action

2265: Extension of Time

2266: Responses

2266.01: Submission Not Fully Responsive to Non-Final Office Action

2266.02: Examiner Issues Notice of Defective Paper in Ex Parte Reexamination

2266.03: Service of Papers

2267: Handling of Inappropriate or Untimely Filed Papers

2268: Petition for Entry of Late Papers for Revival of Reexamination Proceeding

2269: Reconsideration

2270: Clerical Handling

2271: Final Action

2271.01: Panel Review

2272: After Final Practice

2273: Appeal in Ex Parte Reexamination

2274: Appeal Brief

2275: Examiner’s Answer

2276: Oral Hearing

2277: Board Decision

2278: Action Following Decision

2279: Appeal to Courts

2280: Information Material to Patentability in Reexamination Proceeding Filed under 35 U.S.C. 302

2281: Interviews in Ex Parte Reexamination Proceedings

2282: Notification of Existence of Prior or Concurrent Proceedings and Decisions Thereon

2283: Multiple Copending Ex Parte Reexamination Proceedings

2284: Copending Ex Parte Reexamination and Interference Proceedings

2285: Copending Ex Parte Reexamination and Reissue Proceedings

2286: Ex Parte Reexamination and Litigation Proceedings

2286.01: Reexamination and Inter Partes Review Proceedings, Post-Grant Review, and Covered Business Method Patent Review

2287: Conclusion of Ex Parte Reexamination Proceeding

2287.01: Examiner Consideration of Submissions After a NIRC

2288: Issuance of Ex Parte Reexamination Certificate

2289: Reexamination Review

2290: Format of Ex Parte Reexamination Certificate

2291: Notice of Ex Parte Reexamination Certificate Issuance in Official Gazette

2292: Distribution of Certificate

2293: Intervening Rights

2294: Concluded Reexamination Proceedings

2295: Reexamination of a Reexamination

2296: USPTO Forms To Be Used In Ex Parte Reexamination