Acushnet had argued that patents for the golf balls, owned by Callaway Golf Company, were invalid due to patent doctrines known as “obviousness” and “anticipation.” The requirement that a patent be nonobvious generally means that the differences between the patented invention and the prior art must amount to more than a mere rearrangement of prior art elements with each element predictably performing its same function in the new combination, as viewed from the standpoint of one with ordinary skill in the field. Similarly, a patent will be void for “anticipation” if a single, prior art document decribes every element of the claimed invention, such that a person of ordinary skill in the art could practice the invention “without undue experimentation.” In other words, Acushnet essentially argued that Callaway’s golf-ball patents were nothing special because any competent manufacturer could have come up with the idea simply by reviewing existing golf-ball-related patents.
In reviewing a particular independent claim of the relevant patent, the jury found that it was nonobvious and valid. However, the jury also found that one of its dependent claims to be invalid for obviousness. This finding, the court held, was incomprehensible: “A broader independent claim cannot be nonobvious where a dependent claim stemming from that independent claim is invalid for obviousness.” (See Opinion at 21-22, quoting Ormco Corp. v. Align Tech., Inc., 498 F.3d 1307, 1319 (Fed. Cir. 2007)).