Front matter
0005-change-summary.pdf
Summary of changes introduced in this MPEP revision.
Official U.S. patent laws, USPTO rules, and MPEP chapters from MPEP Ninth Edition, Revision 01.2024. These are versioned PDF reference documents — not live USPTO pages — so check the official USPTO source for the latest applicable guidance.
Front matter
Summary of changes introduced in this MPEP revision.
Front matter
Title page for the Ninth Edition of the Manual of Patent Examining Procedure.
Front matter
Foreword to the Manual of Patent Examining Procedure.
Front matter
Introduction to how the MPEP is organized and used during prosecution.
Other chapters
Ch. 100Rules on secrecy, national security, foreign filing licenses, and access to application materials.
Application practice
Ch. 200Application types, status, benefit claims, priority, and continuing application practice.
Application practice
Ch. 300Ownership of patent applications and assignment of rights.
Representation
Ch. 400Representation of applicants and owners before the USPTO, including practitioner requirements.
Application practice
Ch. 500Receipt, handling, and timing of mail and papers filed with the USPTO.
Application practice
Ch. 600Required parts, form, and content of patent applications and related papers.
Examination
Ch. 700Examination of patent applications, including Office Actions, amendments, interviews, and replies.
Restriction
Ch. 800Restriction practice, unity of invention, election requirements, and double patenting.
Prior art & search
Ch. 900Prior art, search, classification, and routing of applications within the USPTO.
Other chapters
Ch. 1000Matters decided by various USPTO officials outside ordinary examination.
Application practice
Ch. 1100Statutory invention registration, pre-grant publication, and preissuance submissions.
Appeal
Ch. 1200Appeal procedures before the Patent Trial and Appeal Board.
Application practice
Ch. 1300Allowance, issue fee payment, and patent grant procedures.
Other chapters
Ch. 1400Correction of patents after grant, including certificates of correction.
Specialized patents
Ch. 1500Examination of design patent applications.
Specialized patents
Ch. 1600Examination of plant patent applications.
Other chapters
Ch. 1700Miscellaneous prosecution topics not covered in other MPEP chapters.
PCT / international
Ch. 1800Patent Cooperation Treaty practice before the USPTO as a receiving office.
Other chapters
Ch. 1900Protest procedures against pending applications.
Duty of disclosure
Ch. 2000Duty of disclosure, information disclosure statements, and material prior art obligations.
Patentability
Ch. 2100Patentability requirements, including eligibility, novelty, obviousness, and written description.
Reexamination
Ch. 2200Citation of prior art and ex parte reexamination of issued patents.
Other chapters
Ch. 2300Interference and derivation proceedings.
Specialized patents
Ch. 2400Biotechnology examination topics and specialized claiming practice.
Patent terms
Ch. 2500Maintenance fee requirements and payment windows for issued patents.
Reexamination
Ch. 2600Optional inter partes reexamination procedures.
Patent terms
Ch. 2700Patent term adjustments, extensions, and term calculation.
Reexamination
Ch. 2800Supplemental examination of issued patents.
PCT / international
Ch. 2900International design application practice before the USPTO.
Appendices & index
MPEP Appendix I — reference materials included in the manual appendix series.
Appendices & index
MPEP Appendix II — supplementary reference material for patent examination practice.
Appendices & index
MPEP Appendix L — supplementary reference material for patent examination practice.
Appendices & index
MPEP Appendix R — supplementary reference material for patent examination practice.
Appendices & index
MPEP Appendix T — supplementary reference material for patent examination practice.
Appendices & index
MPEP Appendix AI — supplementary reference material for patent examination practice.
Appendices & index
MPEP Appendix P — supplementary reference material for patent examination practice.
Appendices & index
Subject matter index for navigating topics across the MPEP.
Appendices & index
Consolidated form paragraphs used in Office Actions and prosecution documents.