Customers
Built for the people who have to be right.
A missed reference is a rejected claim or an invalid patent. Antecedint is built for the work where the citation has to hold up.
Who it's for
Four seats at the same index.
Patent prosecutors
Prior-art search before you draft, and claim-by-claim coverage before you file. Every hit carries the source passage, so an office-action response starts from the record instead of a blank page.
Litigators & IPR
Invalidity search that ranks the closest art and shows which claim elements each reference reads on. Build the chart from scored, cited references, not keyword luck.
Legal AI teams
The retrieval layer under your product. Call the MCP server or the API and get cited results back. Ship the product instead of building a citation warehouse first.
IP operations & analysts
Landscape a field, resolve assignees, and see where art clusters. The same index, read for portfolio work instead of a single claim.
Design partners open
We're onboarding a small group.
Antecedint is early. Rather than list logos we don't have yet, we work directly with a few teams who need this now and want a say in what ships.
Become a design partner →Shape the roadmap
You tell us which corpus and which workflow matters next; it moves up the queue.
Benchmarked on your work
We measure retrieval against your own examiner citations, not just our holdout.
Your queries stay yours
Processed in our cloud account, never used to train models. No customer data by design.
The reason to trust it isn't a testimonial. It's the benchmark, published with the harness.
See the benchmarks →Bring the hard search.
The one where being wrong is expensive. That's the one we built for.