Patent Watch is an AI legal platform that automates the detection of patent infringements. It interprets the language of a patent, identifies competing products in the market, and generates claim charts that map exactly how each infringing product reads on the patented claims. The company collapses what is traditionally a three month, six figure outside-counsel project into an under one hour automated workflow. Patent Watch was founded in 2025 by brothers Alexander Stroe (CEO) and Andreas Stroe, a former Philips research engineer who filed multiple patents and lived the enforcement pain firsthand. The team is based in Toronto, Canada and joined the Y Combinator F25 batch with four employees.
The core platform delivers four capabilities: product mapping at scale, patent search, prior art and invalidity analysis, and portfolio analytics. Legal and IP teams use Patent Watch to find licensing and litigation targets, prepare cease and desist letters, locate counter-litigation opportunities when defending against assertions, value and sell patents in wind-down scenarios, and accelerate intellectual property diligence in mergers and acquisitions. The system can surface a likely infringing product within roughly 20 minutes of being pointed at a patent.
Patent Watch closed a 2.8 million dollar seed round backed by Y Combinator, FundersClub, Transpose Platform, Blast Club, MyAsiaVC, Asymmetry Ventures, Team Ignite Ventures, No Talking Capital, and angel investors, bringing total funding to 3.2 million dollars. The company has reported early recurring revenue within weeks of launch, signed enterprise clients, and active pilots with major technology firms. Pricing is contact-sales and the platform is sold directly to corporate IP teams, patent licensing firms, and law firms.