The company behind any brand, in one call.
Send a brand name, product title, or listing URL. Get back who owns it, how long they've been filing, how many other brands they run, and whether they're part of a known operator network — each claim linked to the USPTO record that proves it.
Built on the full USPTO register: 14,007,055 marks, refreshed every night.
Counts as of July 2026.
Score a whole search page in one call.
Screen up to 100 brands in one request and catch the mass operators before your users meet them.
curl -X POST https://business.knockoff.co/api/v1/batch \ -H "Authorization: Bearer kd_your_key" \ -d '{"brands": ["bombas", "tnfeeon", "jxrev", "zzznotabrand"]}'
| Brand | state | Footprint | Read |
|---|---|---|---|
bombas | matched | US company · 10 brands · 2013→2025 · no mill | Real company. |
tnfeeon | matched | CN company · 88 brands · mill · cluster of 25 | Mass operator. |
jxrev | matched | CN individual · 8 brands · 4-month burst · mill | Spun-up brand swarm. |
zzznotabrand | no_record | null | No trademark at all. |
Built for the teams who can't afford to guess.
Rank what your agent recommends.
Shopping agents inherit Amazon's pseudo-brand problem with fewer defenses: a bad purchase blames the platform, not the marketplace. One call per candidate product tells you whether there's a real company behind the listing, and you rank or filter on whichever fields matter to you.
owner_countryentity_age_monthsoperator_footprintmill_filedreceipts
“My agent is about to recommend a brand it has never heard of. Is there a real company behind this listing?”
Resolve accepts raw product URLs and titles, so the call fits where your agent already works. Sub-second answers, receipts your users can see.
Screen merchant portfolios overnight.
Document KYB verifies the shell: the registration is real, the TIN matches. It says nothing about whether the brand a merchant sells is a real business or one of 88 disposable storefronts run by a single overseas operator. Batch-screen your book against the register and set your own thresholds.
distinct_brandsownership_transfersowner_typemill_filedoperator_cluster
“This merchant passed KYB. Will the business still exist when the chargebacks land?”
Decision-grade lookups with the government record attached — the receipt goes straight into your case file.
Act once against the operator, not a thousand times against listings.
Takedowns treat symptoms. The operator behind them holds dozens of marks across dozens of brands, filed through the same attorneys, from the same addresses. We map the network — entities, aliases, transfer chains, marketplace footprint — with a receipt on every node.
operator_clusteraliasestransfer chainsshared addressesattorney of record
“Who is actually behind this network, so we can stop playing whack-a-mole?”
One-off dossiers, counsel-reviewed language, from $2,500. See operator reports.
Know when a banned operator walks back in.
Your INFORM data verifies the documents a seller submits. It doesn't tell you the “new” seller belongs to an operator network you banned last year. Vet incoming sellers and brands against published operator clusters, joined to 231,656 resolved marketplace seller identities.
seller → entity joinoperator_clustercross-marketplace history
“We banned this operator last year. Are they back on our marketplace right now?”
The longitudinal graph is the point: every month of history makes the migration picture harder to fake.
Answers that survive a dispute.
When a decision gets challenged — by an auditor, a lawyer, or an angry merchant — you point at a government record, not a black-box number. That standard shapes everything about how the data is built.
The full register
All 14,007,055 USPTO marks — applications, registrations, assignments — refreshed nightly. Answers come from the whole corpus, not a curated list.
A receipt on every claim
Every answer links serial numbers you can verify on USPTO TSDR in one click. Your users, auditors, and lawyers can check our work.
Ambiguous means silent
When several unrelated owners could match, we say
ambiguous and publish no owner claim. You never build a
decision on our guess.
Operator networks, evidence-backed
“These brands are one operator” ships only when public records or calibrated matching rules clear the publication bar, with the evidence and basis attached.
Defensible by design
No black-box score. You get the underlying facts and set your own thresholds, so every decision you make traces to a record you can show.
The history clock
Daily deltas archived since day one. Ownership churn, filing bursts, and operator migration are visible because we never stopped watching.
Take it as calls, files, or a finished investigation.
Same graph underneath. Pick the shape that fits how your team works.
Lookup API
Check any brand, title, or URL at request time. Single and batch, sub-second, receipts included.
Free to startthen $5 per 1,000 lookups Pricing →Data feeds
Brand verdicts and resolved seller identities as nightly JSON files, ready for your own pipeline.
Free with attributioncommercial license from $15k/yr Feeds →Operator reports
A counsel-reviewed dossier on one operator network, ready to hand to a court or a marketplace.
From $2,500one-off, about a week Reports →Start with a single call.
Keys are issued by hand while the API is in pilot. Email a line about what you're building; you'll have a key the same day.
curl https://business.knockoff.co/api/v1/brands/tnfeeon \ -H "Authorization: Bearer kd_your_key"Get an API key