Rights in inventions and ideas typically belong to the creator/inventor. Whether your employer has a right to own it depends on whether you agreed to assign your rights to them. You may have signed something when you began working, or you may have agreed to abide by an Employee's Manual, which could include an obligation to assign. Even if you did not agree to transfer ownership, if you have allowed your employer to use your invention, the employer has gained a "shop right" and can continue to use it without paying you. Of course, if you don't have an obligation to assign your rights over and you refuse, your employer may be able to take its own action, particularly if you are in a "right to work" state.
Answered on Apr 07th, 2012 at 2:22 PM