The answer? Not much, in itself. If one patent is good, 132 is probably fine too. That was Judge Easterbrook’s reasoning in a recent decision addressing indirect purchasers’ antitrust challenge to AbbVie’s so-called “patent thicket” of 132 patents around the blockbuster drug Humira, arguing the sheer number of patents blocked would-be biosimilar competition. But “if AbbVie made 132 inventions,” Judge Easterbrook asked rhetorically, “why can’t it hold 132 patents?” As he noted, Thomas Edison alone held 1,093 patents. Having lots of patents shouldn’t be an antitrust issue, according to Judge Easterbrook. It’s how you use the patents.