The phrase "inventive concept" refers to a new and original idea or concept that is innovative and creative. It involves coming up with something unique and different that hasn't been thought of before. Full definition
This regime change (i.e. assessing the underlying inventive concept of a patented invention, rather than purely the literal interpretation of patent wording) has broadened the protection available to patent holders. (hcrlaw.com)
Examining the specification as a whole, the Court found that sildenafil and the other compounds of the invention «were so linked as to form a single inventive concept in the patent at issue». (slaw.ca)
Automakers have designed some very inventive concept cars this year, some of which seem to have the sole purpose of simply looking cool (and that they do). (businessinsider.com)