Is anyone already selling your invention?
You do not need a firm on retainer to answer that question. Paste your patent number and ClaimHit searches the live market for products that practise it, showing you the source for everything it finds, so you can judge it yourself.
- —Asking a firm to investigate costs more than most independent inventors can justify on a maybe.
- —A general AI chatbot will answer confidently and cite things that do not exist, which is worse than no answer.
- —Without evidence you can open, you have nothing to take to a lawyer, a licensee, or an investor.
What ClaimHit does about it
An answer in minutes
Paste a patent number from any major office. Claims are fetched automatically. No forms, no scoping call, no retainer.
Sources you can check
Every match points at real evidence: a product page, a datasheet, a spec. If it cannot be evidenced, it is not shown to you as a finding.
Something to hand a lawyer
A Hit Chart maps your claim against a specific product. Whatever you do next, you arrive with the work already started.
It will tell you no
The engine reports NONE where the record runs out and does not round a maybe up. An honest negative saves you far more than a flattering guess.
Every result has to earn it. Candidates come from several models, live web search, forward citations and the registries for the field, but breadth only widens the net. Each one is still checked against real, citable evidence. See how →
It costs a lot less to check than to wonder.
See a real Hit Report first.
A complete ClaimHit output on a published patent: the companies and products it reaches, the sources that confirmed each one, and a Hit Chart on the strongest hit. One email, no account.
Or watch a patent: we tell you when a new company appears for it.
See who is using your patent.
The pilot is one patent: the full product search and one Hit Chart, with a 30-day money-back guarantee. No subscription, no card on file after that.
Independent inventors: $59 with code INVENTOR. The code is applied for you when you start from this page.