MPEP § 309 — Restrictions Upon Employees of U.S. Patent and Trademark Office (Annotated Rules)

This page consolidates and annotates all enforceable requirements under MPEP § 309, 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.

Restrictions Upon Employees of U.S. Patent and Trademark Office

This section addresses Restrictions Upon Employees of U.S. Patent and Trademark Office. Primary authority: 35 U.S.C. 4.

Key Rules

Mandatory Requirements (1)

StatutoryProhibitedAlways
[mpep-309-ac7d2c31868ea6b61557617f]
Patent Priority After Appointment Termination
Note:
Patent officers cannot claim a priority date earlier than one year after their appointment ends.

Officers and employees of the Patent and Trademark Office shall be incapable, during the period of their appointments and for one year thereafter, of applying for a patent and of acquiring, directly or indirectly, except by inheritance or bequest, any patent or any right or interest in any patent, issued or to be issued by the Office. In patents applied for thereafter they shall not be entitled to any priority date earlier than one year after the termination of their appointment.

Exceptions & Carve-Outs (1)

StatutoryRequiredAlways
[mpep-309-e579ca6bbd6b7820f0cfb3a3]
Employees Prohibited from Applying for Patents After Leaving Office
Note:
Employees of the Patent and Trademark Office cannot apply for patents or acquire any patent rights for one year after leaving their position.

Officers and employees of the Patent and Trademark Office shall be incapable, during the period of their appointments and for one year thereafter, of applying for a patent and of acquiring, directly or indirectly, except by inheritance or bequest, any patent or any right or interest in any patent, issued or to be issued by the Office. In patents applied for thereafter they shall not be entitled to any priority date earlier than one year after the termination of their appointment.

Definitions & Scope (1)

StatutoryInformativeAlways
[mpep-309-bd50dfe6b4b6a1dfe21635d3]
Restrictions on Office Employees as to Interests in Patents
Note:
This rule outlines additional restrictions for U.S. Patent and Trademark Office employees regarding their interests in patents, as detailed in MPEP § 1701.

See MPEP § 1701 for additional restrictions on Office employees.

Citations

Primary topicCitation
MPEP § 1701

Source Text from USPTO’s MPEP

This is an exact copy of the MPEP from the USPTO. It is here for your reference to see the section in context.

BlueIron Last Updated: 2025-12-31