The important question is not whether artificial intelligence was used. The question is what each natural person contributed to the claimed invention.
The USPTO revised its guidance in November 2025. It states that only natural persons may be named as inventors and that no separate inventorship test applies to inventions developed with artificial intelligence assistance. This clarification places greater importance on the quality of invention records.
Inventorship follows the claims
Inventorship is assessed against the subject matter of the claims. A person may have contributed substantially to one claimed feature but not another. When claims change during prosecution, the correct inventors should be reconsidered.
A team should not decide inventorship by job title, seniority or time spent on the project. The analysis concerns contribution to conception of the claimed subject matter.
Prompts are evidence, not an automatic answer
A carefully written prompt may show that a person framed a technical problem, imposed meaningful constraints or proposed a solution architecture. It does not automatically prove inventorship. The surrounding work matters. The team should record why a particular output was selected, changed or combined with other technical reasoning.
- The technical problem identified by each contributor.
- Prompts that contain substantive technical direction.
- Rejected outputs and the reasons for rejection.
- Human changes that produced the final implementation.
- Test results that led to a claimed feature.
- Claim charts identifying the contribution to each claim.
Do not turn the specification into a tool log
The patent specification should explain the invention. It should not narrate every interaction with a software tool. A complete technical disclosure remains necessary. The description should identify the architecture, operation, alternatives and technical effects that support the claims.
International families require coordinated review
Inventorship rules and disclosure obligations differ across jurisdictions. Names should not be copied mechanically from the first filing without considering the claims that will actually be pursued in the United States.
A practical review process
Begin with an inventor discussion that separates the underlying technical objective from the output produced by the tool. Identify the human decisions that shaped the solution. Draft the claims. Then map each claim to the human contribution and repeat the review if the claims materially change.
Frequently asked questions
Can an AI system be named as an inventor?
No. The USPTO guidance states that inventors must be natural persons.
Does use of generative AI prevent patent protection?
No. The ordinary requirements for inventorship and patentability still apply.
Should every person who used the tool be named?
No. A person must have made the contribution required by inventorship law to the claimed subject matter.