Exactly. I don't say it is not possible for somebody to have 400 original patents, but I think it is incompatible with also having a full time job as a CEO of a large company
if you had to do them yourself.
Also it is worth noting that ideas are a dime a dozen. Years ago I red Getting Things Done by David Allen and I set up my GTD system in Ultra Recall. Since then, I had the idea for the best personal information management system ever. Too bad, I carried the idea with me for too long and never executed on it. Recently I discovered that somebody had very similar idea and the application is called Notion.
See, it does not matter if you have an idea, it only has any worth if you can also execute on it.