The theoretical ideas are still out here. It'd be more if someone figured out a way to do GPS (with relativity issues solved) and decided to keep that secret.

The theoretical ideas are still out here. It'd be more if someone figured out a way to do GPS (with relativity issues solved) and decided to keep that secret. Bit of a devil's advocate for patents too. Sure, you can't build the exact same thing for a while, but at least the principles are revealed.