On December 15, 1992, U.S. Patent No. D331654 issued to Marika Kesdekoglu on a Chocolate Candy in the Shape of Father Christmas,

Father Christmas is mentioned is just a few other U.S. Patents, including U.S. Patent No. 6,510,963 on a Novelty Dispenser:

U.S. Patent No. 6,461,219, on an Animated Display, which discloses a “wobbly snowman and wobbly Father Christmas”:

U.S. Patent No. D996,277 on a Father Christmas Holiday Light:

Father Christmas is mentioned in a total of 17 US patents, while Santa Claus is mentioned in at least 979 patents,