So does theirs.
Are you familiar with the Arduino microcontroller board and the wide ranging accessories for it? The Arduino itself came from Italy and the lion's share of accessories come from China. The United States hasn't contributed much to that important endeavor.
The United States seems to innovate elaborate weapons systems, not much else.
Oh yes, they are great for making flight sim stuff ( I wish my soldering skills were up to snuff ).
But copying others IP and selling it more cheaply is not a good example of "innovation" unless you are Microsoft.
IMHO the only innovation that has come out of China are drones, specifically from DJI.
Their drone technology is unrivaled and they are years ahead of everyone else.
I think DJI succeeded despite coming from the CCP, probably because the all knowing central planners are too stupid to realize what DJI did until they dominated the market, and they have tried to interfere with them ever since.