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So it turns out Michael Jackson actually invented a special shoe for creating an anti-gravity illusion which he even had patented in the United States.
Patricia Bath's patent (#4,744,360) was for a method for removing cataract lenses that transformed eye surgery by using a laser device making the procedure more accurate. In 1881, he patented his first invention, a plow, and sold the patent rights for $4,000 in 1884.