Remember when Sergey Brin was on The Gavin Newsom Show showing off Project Glass' right-sidedphysical trackpad? Today, that element of the tech was given the official thumbs-up by the US patent and trademark office. Legally-trained minds in the audience concerned about the appearance forming prior art, take it easy -- the patent was filed five days before the Google chief took to basic cable to demonstrate his pet project to the current Lt. Governor of California.