You cannot patent an idea.
Carriers (that is proper ones, not just silly little boats like Invisible) need angled decks, mirror landing sights, arrestor systems and catapults because they can't be built long enough to launch or recover combat aircraft otherwise. Being able to generate 30+ knots of wind-over-the-deck also helps....
How would catapults, arrestor systems and all the associated maintenance thereof ever be economically viable on land? I believe it was tried with Hawker biplanes in the '30s and was demed a crock of $hit even then...