I looked up Jovan Hutton Pulitzer. Apparently he is also known as Jeffry Jovan Philyaw, and he does indeed hold a boatload of patents.
I don't see any evidence that he actually invents anything, mind you, but he holds a lot of patents. As a lot of you know, you don't actually have to have an invention in order to patent something. As best I can tell this dude is one of those scoundrels that files as many patent applications as he can on things which someone else might actually be in the process of inventing, for real, in the hopes of suing them for patent infringement and soaking them for royalties.
I have no idea if he's successful at it, i.e. whether he's filthy rich or just scraping by.
Here's a link to one of his patents:
https://patents.google.com/patent/US8296440B2/en?inventor=Jeffry+Jovan+Philyaw
By clicking on the link there, you can find a whole lot of patents by the same "inventor".
As for his 300 history books, the ones available on Amazon are mostly treasure hunting manuals. One for every state. Apparently there's lost gold in Wisconsin. (And every other state). I'm guessing the gold is hidden underneath discarded Trump ballots. What I'm fairly certain of is that no one who has shelled out 8 bucks for one of his "history books" has ever found buried treasure.