Oon October 27, 1936, Gustav Bucky and Albert Einstein (yes, THAT Albert Einstein) received U.S. Patent No. 2,058,562 on a Light Intensity Self Adjusting Camera:

This was not Albert’s first experience with patents. In addition to being a patent examiner in the Swiss Patent Office (imagine trying to convince him that some invention was not obvious), he earlier patented a refrigeration system (U.S. Patent No. 1,781,541, with Leo Szilard: