HomeCompaniesPatent Watch

Patent Watch

AI for detecting patent infringements

We automate patent infringement detection. Our software interprets patents, identifies competing products, and generates claim charts showing who’s infringing and how. Teams use us to: - Find licensing and litigation targets - Send cease-and-desist letters - Find counter litigation - Sell IP in wind-downs - Accelerate M&A diligence We also run AI invalidity and prior-art searches to help your patents hold up in court. Companies spend up to $50k to file and maintain a single patent over its lifetime, but once it's granted, they let it collect dust. With Patent Watch, you can start turning your patent portfolio into revenue in 10 minutes.
Active Founders
Alexander Stroe
Alexander Stroe
Founder
Founder @ Patent Watch | Prev day traded funded accounts, spent > $1M on ads
Andreas Stroe
Andreas Stroe
Founder
Founder @Patent Watch | Ex Research @ Philips
Company Launches
Patent Watch - AI for patent infringements 📜
See original launch post

Patent Watch Launch Video

Problem

My co-founder, Andreas Stroe (also my brother), was doing research at Philips. He applied for 4 patents while he was there. After spending way too much time talking to the IP team, he realized that they hold 50,000 patents with a team of ~10 people to defend them.

A little background: a patent costs around $50k to obtain and maintain. $17k is non-negotiable, paid directly in fees. That means their portfolio costs $850M to $2.5B. The best part is that they, and pretty much every company in the world, rely on Googling competitors and sending salespeople to trade shows to hear about new products that could be infringing. This whole portfolio is making little to no revenue.

I guess you can see why we started building this right away.

Can you tell we’re brothers?

Solution

Super simplified to keep it easy to understand:

✅ We let companies upload their patents and get a list of claim charts showing what products are infringing and how, in 20 minutes instead of months.

✅ When companies get sued, they can use us to find counter litigation, since the person suing them is most likely infringing on some of the patents they hold too.

✅ The most common way to get these cases thrown out of court is by considering a patent invalid. That means there is some proof, like other patents, research papers, or products that existed before your patent was filed. We find all these and confirm your patents will hold up in court.

There is more, but you can consider this our “core”.

Proof

As you can imagine, pretty much everyone we work with has us under NDA. What I can tell you is that we work with private inventors up to Fortune and Global 500 companies.

Why now?

Of course, AI …

But also, the US Patent Office is tightening the rules for challenging patents in its review court. The director is being pickier about which cases get heard, and some evidence no longer counts.

🚨 It’s going to be a lot harder to attack a patent and a lot easier for owners to defend one🚨

Ask

If you hold patents and have more applications pending, you can probably use us.

Outside of that, we’d really appreciate intros to:

  • Patent attorneys
  • IP managers
  • Licensing managers
  • CTOs or heads of R&D at hardware, biotech, industrial, and large software companies

My email is alex@patentwatch.ai if you want to chat :)

Thanks for reading!

Patent Watch
Founded:2025
Batch:Fall 2025
Team Size:2
Status:
Active
Location:Toronto, Canada
Primary Partner:Nicolas Dessaigne