WhitServe Alleges that Mac OS X Infringes on a Patent it Holds for “Sequentially Opening and Displaying Files in a Directory.”  Steve Musil at c:net  reports that WhitServe, which owns intellectual property but doesn’t make any real products, is suing Apple over allegations that versions of the Mac OS X operating system infringe on a file viewer patent it holds: The complaint, filed today in U.S. District Court in Connecticut, claims that Apple’s Quick Look violates Patent No. 7,921,139, a system for “sequentially opening and displaying files in a directory.”Introduced in 2007 with Mac OS X Leopard, Apple’s Quick Look allows users…