The Inaugural Series of the USPTO Trading Cards was introduced at the 2012 USA Science and Engineering Festival. The festival was definite success with many notable science geek celebrities in attendance. A free event - put it on the calendar for next year.
The trading cards feature caricatures of notable inventors and the Director of the USPTO. The trading card on the left is a caricature of George Washington Carver. The trading card to the right is a caricature of Thomas Edison. Illustrations Courtesy of USPTO