F.o.b. or 'free on board' is a shipping method under which goods are delivered at a designated location where legal title (and thus the risk of loss) passes from the seller to the buyer. The Court of Appeals for the Federal Circuit has determined that a trial court does not lose subject matter jurisdiction over a patent or copyright infringement case where all sales of accused products to U.S. customers were made f.o.b. in Canada by a Canadian corporation. Litecubes, LLC v. Northern Light Prods., Inc., ___ F.3d ____ (Fed. Cir. 2008). Whether a defendant 'makes, uses, offers to sell or sells any patented invention, within the United States or imports into the United States any patented invention' is a factual element required to prove patent infringement, but does not affect federal subject matter jurisdiction.