- 401-U.S. Patent and Trademark Office Cannot Aid in Selection of Patent Practitioner
- 402-Power of Attorney; Naming Representative
- 402.01-Limited Recognition in Patent Matters
- 402.02-Appointment of Power of Attorney
- 402.03-Signature Requirements for Papers Filed in an Application
- 402.04-Acting in a Representative Capacity
- 402.05-Revocation of Power of Attorney
- 402.06-Attorney or Agent Withdraws
- 402.07-Assignee Revocation of Power of Attorney of Applicant and Appointment of New Power of Attorney
- 402.08-Application in Interference or Derivation Proceeding
- 402.09-International Application
- 402.10-Appointment/Revocation by Less Than All Applicants or Owners
- 403-Correspondence — With Whom Held; Customer Number Practice
- 404-[Reserved]
- 405-Interviews With Patent Practitioner Not of Record
- 406-Death of Patent Practitioner
- 407-Suspended or Excluded Patent Practitioner
- 408-Interviews With Patent Practitioner of Record
- 409-Death, Legal Incapacity, or Unavailability of Inventor
- 409.01-Deceased or Legally Incapacitated Inventor
- 409.02-Unavailable Joint Inventor – Application Filed on or after September 16, 2012
- 409.03-Unavailability of Inventor – Application Filed Before September 16, 2012
- 409.03(a)-At Least One Joint Inventor Available
- 409.03(b)-No Inventor Available
- 409.03(c)-Unavailable Legal Representative of Deceased Inventor
- 409.03(d)-Proof of Unavailability or Refusal
- 409.03(e)-Statement of Last Known Address
- 409.03(f)-Proof of Proprietary Interest
- 409.03(g)-Proof of Irreparable Damage
- 409.03(h)-Processing and Acceptance of a Pre-AIA 37 CFR 1.47 Application
- 409.03(i)-Rights of the Nonsigning Inventor
- 409.03(j)-Action Following Acceptance of a Pre-AIA 37 CFR 1.47 Application
- 409.04-[Reserved]
- 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, 2012
- 410-Representations to the U.S. Patent and Trademark Office