GleanMark
Free USPTO trademark search that's actually usable
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Howard Katzenberg

GleanMark - Free USPTO trademark search that's actually usable

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Most founders discover trademark conflicts after it's too late. The USPTO site is unusable. Legacy monitoring tools cost too much and are clunky. GleanMark changes that: → Search 13M+ USPTO records with a modern interface and filters → Robust similarity analysis flags conflicting marks automatically → Monitor any trademark or owner with alerts on 30+ event types → AI summaries of prosecution history and TTAB cases Free to use.

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Howard Katzenberg
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Hey PH! I'm Howard, founder of GleanMark. Six years ago, I named my company "Glean." What followed was a years-long trademark conflict that cost real money and endless distraction. During that fight, I discovered the tools to research and monitor trademarks simply didn't exist—at least not at a reasonable price. The legacy players charge $300-1,000/month for interfaces that feel like 2005. The USPTO site is a maze. Most founders just wing it until they get a cease & desist. So I built GleanMark. What makes it different: → Search 13M+ USPTO records with a modern UI (updated daily) → AI-powered similarity analysis to flag conflicting marks → Monitor any trademark or owner with alerts on 30+ event types → AI summaries of prosecution history and TTAB proceedings → One-click brand clearance: check trademark conflicts + domain availability together This isn't just a better search box. It's the research and monitoring workflow that replaces hiring an IP attorney for routine brand protection. Free search. Free monitoring. I'm a former CFO and startup CEO—I built this for founders and small firms who deserve better tools without enterprise pricing. Happy to answer any trademark questions in the comments!