Page:Impression Products, Inc. v. Lexmark Int’l, Inc. Decision.pdf/6

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delivered the opinion of the Court.

A United States patent entitles the patent holder (the “patentee”), for a period of 20 years, 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 that item through the patent laws—its patent rights are said to “exhaust.” The purchaser and all subsequent owners are free to use or resell the product just like any other item of personal property, without fear of an infringement lawsuit.

This case presents two questions about the scope of the patent exhaustion doctrine: First, whether a patentee that sells an item under an express restriction on the purchaser’s right to reuse or resell the product may enforce that restriction through an infringement lawsuit. And second,