Correct, because you don't own anything. No patent trademark or copyright. What you have is just information until you patent the embodiment of it. You could file a quick patent and then assign your rights in the patent application. You could strike an agreement to divulge your trade secret to them or to have them pay royalties to use it and cover the entire trade secret with an NDA or non-compete agreement. Preferably both.
Answered on Feb 09th, 2011 at 12:28 PM