This is done for the Code of Honor. Basically, to avoid patents being used against the gaming industry, video game companies file patents for a lot of different game design concept, so all developers can freely implement these mechanics without getting sued.
I saw another video about this, Nintendo pretty much never sues anyone on gaming patents. They do sue a lot for other stuff though, like piracy or protecting IP / copyright.
This is done for the Code of Honor. Basically, to avoid patents being used against the gaming industry, video game companies file patents for a lot of different game design concept, so all developers can freely implement these mechanics without getting sued.
For more info, this video may help: https://youtu.be/cbH9-lzx4LY
I saw another video about this, Nintendo pretty much never sues anyone on gaming patents. They do sue a lot for other stuff though, like piracy or protecting IP / copyright.