Except that you have the technical know how to keep advancing, and have already been producing them before they hit market an have been reverse engineered.
Also a lot of research is already done at, or in cooperation of universities, or with research tax breaks.
Let alone the fact that a lot of patents are absolute bullshit. There are patents on UI elements, even black rubber handles with a hand grip. Not white ones, mind you. It’s insanity and stifles innovation.
But if patents and trademarks and copyright are so incredibly important for innovation, I guess that’s why stuff like math and theoretical physics has the lowest amount of innovation, right?