> "[The U.S. patent system] is not obliged to register change in ownership." That I hadn't known; the implication being, if you intend to leverage a patent wit

> "[The U.S. patent system] is not obliged to register change in ownership." That I hadn't known; the implication being, if you intend to leverage a patent with lawful permission from its licensor, it's still possible to get screwed (by being misled about the rightful owner's identity, for instance).