[delichon]

  SawStop To Dedicate Key U.S. Patent To The Public Upon The Effective Date Of A Rule Requiring Safety Technology On All Table Saws

https://www.sawstop.com/news/sawstop-to-dedicate-key-u-s-pat...

[sevenseventen]

They have hundreds of patents, though. One key patent - which IIRC is on the verge of expiration - does not mean that it's possible to build a saw that doesn't infringe one or more of the others.