The LENR technology was being held up by the USPTO. Since I know for a fact that NASA and the US Navy already have long ago demonstrated advanced capability, then it was for the protection of those black budget projects and the beltway bandits.
They held up the advancement of cheap, clean energy for all of mankind for the benefit of a few defense contractors. Welcome to the deep state.
https://www.youtube.com/watch?v=ly7rKFgYyMc