Impression Products, Inc. V. Lexmark International, Inc. Certiorari To The United States Court Of Appeals For The Federal Circuit No. 15–1189. Argued March 21, 2017-Decided May 30, 2017 A United States patent entitles the patent holder to "exclude others from making, using, offering for sale, or selling [its] invention throughout the United States or importing the invention into the United States." 35 U. S. C. §154(a). Whoever engages in one of these acts "without authority" from the patentee may face liability for patent infringement. §271(a). When a patentee sells one of its products, however, the patentee can no longer control...