From the mouth of Cliff Claven. Amazing.
Little known trivia but Cliff/John was a bit player in Star Wars The Empire Strikes Back playing a rebel forces Major Derlin.
Cliff Claven is a character. John Ratzenberger is an actor. That means that he was acting as Cliff. And he's an inventor. I believe that he holds a number of patents, including the one for the bio-degradable version of the styrofoam peanut used in shipping.