A “notice” slapped on the outside of a package saying “single use only” continues to ensure a manufacturer selling you the product can sue for patent infringement should someone dare reuse its goods. This is what the Court of Appeals for the Federal Circuit held on Friday, reaffirming its previous case law, despite intervening Supreme Court law and compelling arguments against its earlier case law. The issue is one of “patent exhaustion.” This is the patent law version of “first sale,” the doctrine in copyright law that says that once a consumer buys a copy of a work, she owns it, and can do what she wants with that copy. Patent law is similar. Once a patent owner sells a product, it cannot later claim its use is infringing. Yet the full court of the Federal Circuit held that so long as the sale was “restricted” by something as simple as a notice placed on the disposable packaging of a product, patent rights could be…
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