Terms of service

Nulity is a research-preview tool for surfacing prior-art candidates against a patent. It is provided for evaluation by patent attorneys, IP professionals, and inventors.

Results are retrieval suggestions, not legal opinions. The system ranks candidates by predicted likelihood of invalidating — deciding whether a reference actually invalidates a claim is the attorney’s judgment. Nothing surfaced here should be relied on in a filing without independent review.

The system surfaces references from a fixed corpus of US patents and PTAB Final Written Decisions. It does not generate references, claim charts, or legal arguments. Snippet previews are extracted verbatim from the underlying documents.

• Don't scrape, redistribute, or resell results.
• Don't attempt to extract the underlying corpus or model weights.
• One account per person.

We provide the service on a best-effort basis. No SLA, no warranty, no liability for downtime, lost work, or decisions made on the basis of results.

We may change these terms; material changes will be announced on the home page. Continued use after a change constitutes acceptance.