Who May File a U.S. Patent Application?

A patent application may be filed through an inventor or another authorized applicant, such as an assignee under the applicable statutory conditions. Applicant, inventor, and owner are different roles. Paying for an invention or employing its creator does not automatically make someone an inventor. [1]

Inventorship concerns the inventive contribution

The patent law defines inventor and joint inventor. Identify the natural persons who contributed to conception of the claimed invention under the governing standard. Administrative support, funding, or merely following instructions is not automatically an inventive contribution. USPTO’s inventorship guidance explains the claim-specific inquiry. [2]

Other applicants need legal authority

Assignees, persons obligated to receive an assignment, and specified persons with sufficient proprietary interest may apply under section 118’s conditions. Legal representatives can act in specified situations such as death or incapacity. The application must still identify the actual inventor and satisfy the required declarations or permitted substitutes. [3]

Clarify ownership before filing

Review employment agreements, assignments, collaboration terms, and each person’s contribution to the claims. An ownership dispute and an inventorship error can require different corrections.

For example, a company may own the rights through assignment while its employee remains the named inventor. An outside collaborator who contributed to a claim may need joint-inventor consideration.

Using a tool does not answer inventorship

Inventorship concerns the contribution to the claimed invention. A person can use research tools, software, or AI assistance without making the tool a named inventor, but the necessary human contribution still requires analysis under current law and guidance. Do not assume that entering a prompt either automatically establishes inventorship or automatically makes the entire invention unpatentable. Keep records showing what the people conceived and how the claimed subject matter developed. [2]

Also choose the application type deliberately. A provisional filing, a nonprovisional utility application, a design application, and a plant application do not have identical requirements or effects. Section 111 addresses the relevant application framework. [1] Correct inventorship, a valid assignment, and a useful filing date are three related issues; solving ownership alone does not cure a deficient disclosure or an incorrect inventor list.

See novelty under section 102 and copyright fair use. Patent inventorship and copyright ownership involve separate rights and should not be inferred from one another.

Primary sources

  1. 35 U.S.C. 111
  2. MPEP 2109 – Inventorship
  3. 35 U.S.C. 118

Sources checked: October 31, 2026.