Technology doesn't advance when patents are granted, it advances when patents expire.
The first cell phone call was made April 3, 1973. Cell phones took off 20 years later when the patents expired.
https://www.cnn.com/2023/04/03/tech/cell-phone-turns-50/index.html
Steve Sasson created the first self-contained digital camera in 1975:
https://web.archive.org/web/20130121194248/http://pluggedin.kodak.com/pluggedin/post/?id=687843
20 years later, the patents expired...
@landley I'm *super* not convinced that patents have any sensible philosophical grounding (in the sense that say physical property rights do), nor that they offer any pragmatic payoff either.