When to use
Use this before a client commits to a new brand name, product name, mark, or logo — while changing course is still cheap. It applies a consistent knockout-then-full search so obvious conflicts surface early and a real risk read backs the naming decision.
Not for: deciding whether a product design or feature is patent-clear (see ipl-fto-triage), reacting to an alleged conflict already raised against you (see ipl-infringement-triage), or interviewing an inventor about what they built (see ipl-cold-start-interview). This clears marks, not inventions or freedom-to-operate.
Method
- Define the mark and scope. Capture the exact mark, any logo/stylization, and the goods/services with their Nice classification classes. Clearance is per-class — a mark clear in one class can be blocked in another.
- Knockout search. Look for identical and near-identical marks in USPTO TESS, common-law and state registrations, and domain/social handles. Decision point: an identical live mark on related goods usually ends it here — recommend a new candidate rather than paying for a full search.
- Full search if knockout clears. Broaden to phonetic equivalents, translations, and design/coexisting marks across the relevant classes and channels.
- Analyze under likelihood-of-confusion using the factors in Reference. Weigh mark similarity and relatedness of goods most heavily.
- Risk-rate: clear / caution / high-risk. Map to a recommendation: proceed, modify (alter the mark, narrow the goods, or disclaim), or abandon.
- ATTORNEY-ESCALATION GATE. You assist; you do not render legal opinions and this is not legal advice. Route any caution/high-risk result, any registrability opinion, and any filing decision to a licensed trademark attorney before the client relies on it or files.
Example
Client wants "LUMENADE" for canned beverages (Class 32). Knockout finds "LUMINADE" live for fruit drinks, same class. Marks are near-identical in sound and meaning; goods are directly related; senior mark is suggestive (moderately strong). Rating: high-risk. Recommendation: modify or abandon; route to attorney before any filing.
Pitfalls
- Searching only for exact spellings. Confusion turns on sound and meaning — phonetic and foreign-equivalent hits matter more than identical text.
- Ignoring common-law use. Unregistered senior users hold rights TESS never shows; a clean register is not a clean field.
- Clearing across the wrong classes. Rate risk against the actual goods/channels, not the whole register.
- Treating a rating as a legal opinion. A "clear" read is triage; registrability and enforcement calls belong to counsel.
Output format
Mark / logo / stylization:
Goods-services & Nice class(es):
Knockout results: <identical | near-identical hits + class/status>
Full search results (if run):
Likelihood-of-confusion analysis (by factor):
Risk rating: CLEAR | CAUTION | HIGH-RISK
Recommendation: proceed | modify (<how>) | abandon
Attorney escalation: <yes/no + why>
Reference
Likelihood-of-confusion factors: similarity of the marks (sight, sound, meaning/commercial impression); relatedness of the goods/services; strength/distinctiveness of the senior mark on the fanciful > arbitrary > suggestive > descriptive > generic spectrum; channels of trade and marketing; purchaser sophistication; evidence of actual confusion; intent of the junior user; and likelihood of expansion ("bridging the gap"). US frameworks applying these: DuPont (TTAB), Sleekcraft (9th Cir.), and Polaroid (2nd Cir.).