term:

Invention

invention n

: a device, process, or discovery under U.S. patent law that is new and useful, that reflects extraordinary creative ability or skill, and that makes a distinct and recognized contribution to and advancement of science
;also
: the act or process of creating such an invention compare aggregation, combination, equivalent

Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.