MPEP 400 – Representative of Applicant or Owner

This page consolidates and annotates enforceable requirements under MPEP 400 — Representative of Applicant or Owner, including statutory authority, regulatory rules, examiner guidance, and practice notes. It is provided as guidance, with links to the ground truth sources. This is information only, it is not legal advice.

MetricValueShare of total
Rules extracted629
1.7%
Citations to Authorities
MPEP875
USC76
CFR1,543
PCT106
2.1%
Avg citations per rule4.13
Topics covered80 primary + 133 secondary
8.8%

Pages in this chapter

Page
MPEP § 401 — U.S. Patent and Trademark Office Cannot Aid in Selection of Patent Practitioner9 rules
MPEP § 402 — Power of Attorney; Naming Representative24 rules
MPEP § 402.01 — Limited Recognition in Patent Matters13 rules
MPEP § 402.02 — Appointment of Power of Attorney6 rules
MPEP § 402.02(a) — Appointment in Application Filed On or After September 16, 201240 rules
MPEP § 402.02(b) — Appointment in Application Filed Before September 16, 201213 rules
MPEP § 402.03 — Signature Requirements for Papers Filed in an Application8 rules
MPEP § 402.04 — Acting in a Representative Capacity17 rules
MPEP § 402.05 — Revocation of Power of Attorney4 rules
MPEP § 402.05(a) — Applicant Revocation – Application Filed On or After September 16, 201213 rules
MPEP § 402.05(b) — Applicant Revocation – Application Filed Before September 16, 201212 rules
MPEP § 402.06 — Attorney or Agent Withdraws34 rules
MPEP § 402.07 — Assignee Revocation of Power of Attorney of Applicant and Appointment of New Power of Attorney22 rules
MPEP § 402.08 — Application in Interference or Derivation Proceeding1 rules
MPEP § 402.09 — International Application17 rules
MPEP § 402.10 — Appointment/Revocation by Less Than All Applicants or Owners12 rules
MPEP § 403 — Correspondence — With Whom Held; Customer Number Practice46 rules
MPEP § 403.01(a) — Correspondence in Applications Filed On or After September 16, 201230 rules
MPEP § 403.01(b) — Correspondence in Applications Filed Before September 16, 201240 rules
MPEP § 403.02 — Two Patent Practitioners for Same Application3 rules
MPEP § 405 — Interviews With Patent Practitioner Not of Record5 rules
MPEP § 406 — Death of Patent Practitioner4 rules
MPEP § 407 — Suspended or Excluded Patent Practitioner5 rules
MPEP § 408 — Interviews With Patent Practitioner of Record7 rules
MPEP § 409 — Death, Legal Incapacity, or Unavailability of Inventor4 rules
MPEP § 409.01(a) — Deceased or Legally Incapacitated Inventor – Application Filed on or After September 16, 201217 rules
MPEP § 409.01(b) — Deceased or Legally Incapacitated Inventor- Application Filed Before September 16, 201223 rules
MPEP § 409.02 — Unavailable Joint Inventor – Application Filed on or after September 16, 20126 rules
MPEP § 409.03 — Unavailability of Inventor – Application Filed Before September 16, 201222 rules
MPEP § 409.03(a) — At Least One Joint Inventor Available6 rules
MPEP § 409.03(b) — No Inventor Available17 rules
MPEP § 409.03(c) — Unavailable Legal Representative of Deceased Inventor4 rules
MPEP § 409.03(d) — Proof of Unavailability or Refusal19 rules
MPEP § 409.03(e) — Statement of Last Known Address4 rules
MPEP § 409.03(f) — Proof of Proprietary Interest17 rules
MPEP § 409.03(g) — Proof of Irreparable Damage1 rules
MPEP § 409.03(h) — Processing and Acceptance of a Pre-AIA 37 CFR 1.47 Application8 rules
MPEP § 409.03(i) — Rights of the Nonsigning Inventor11 rules
MPEP § 409.03(j) — Action Following Acceptance of a Pre-AIA 37 CFR 1.47 Application6 rules
MPEP § 409.05 — Application For Patent by an Assignee, Obligated Assignee, or a Person Who Otherwise Shows Sufficient Proprietary Interest – Application Filed On or After September 16, 201220 rules
MPEP § 410 — Representations to the U.S. Patent and Trademark Office59 rules

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