A case that sparked debate over the murky backgrounds of many IP plaintiffs came to an unceremonious end on Tuesday, when an appeals court refused to revive patent infringement claims targeting Google Inc. over its lucrative Adsense program.

The U.S. Court of Appeals for the Federal Circuit affirmed an earlier decision tossing the case, which was brought by a shell company called Suffolk Technologies LLC. The Federal Circuit’s 16-page decision is a win for Google’s lawyers at Keker & Van Nest, led by Robert Van Nest and Steven Hirsch.