You may or may not have built it or bought it, whatever it is, but you certainly don't own it as the government's revocation of copyrights to the Washington Redskins name abundantly demonstrates.
Hold a patent or copyright? If the government wishes, or if said patent or copyright offends the Dear Leader, than poof! it's gone. Own property? If the government feels it could be collecting higher taxes on it if it were put to a different use, than poof! it's declared "blighted", taken from you, and sold at a discount to a politically favored developer.
So now add the U.S. Patent office to the list of agencies whose function includes doing the administrations bidding. It's looking a lot like Zimbabwe here.