What is patent exhaustion?
Patent exhaustion (also called the first sale doctrine) is a fundamental limit on patent rights: once a patent holder or its authorized licensee makes an authorized sale of a patented item, the patent holder's rights in that specific item are exhausted. The purchaser can then use, resell, repair, donate, or otherwise deal in the article without further patent liability. The patent holder cannot use patent infringement claims to control downstream use of the item — it must instead rely on contract law (such as license restrictions or sales terms), which only binds direct contractual parties and doesn't restrict subsequent purchasers who were not party to the original sale.
Impression Products v. Lexmark (2017)
The Supreme Court's 2017 decision in Impression Products v. Lexmark International is the landmark patent exhaustion case. Lexmark sold printer cartridges at a discount with a 'return program' requiring single use and return. It also sold cartridges abroad without such restrictions. Impression Products (a remanufacturer) refilled and resold both domestic single-use cartridges and foreign-sold cartridges in the US. Lexmark sued for patent infringement. The Supreme Court held: (1) domestic conditional sales exhaust patent rights — post-sale restrictions can only be enforced contractually, not through patent law; (2) authorized foreign sales also exhaust US patent rights — the Court overruled the Federal Circuit's prior rule that foreign sales did not exhaust US patents. The decision was a significant expansion of exhaustion and a limitation on patent holders' post-sale control.
Conditional sales and post-sale restrictions
Before Impression Products, patent holders tried to use 'conditional sales' — attaching use restrictions to the sale — to preserve patent rights over the product post-sale. Lexmark argued that by clearly stating that the patent was not licensed for re-use or refilling, it had not made an 'authorized' unconditional sale. The Supreme Court rejected this: an authorized sale is an authorized sale; the conditions the patent holder attaches do not preserve its patent rights. If Lexmark wants to restrict post-sale use, it must enforce that through contract law — which bound only the direct purchaser (the end-user who bought from Lexmark) and not downstream buyers like Impression Products, who bought the cartridges from other sources.
International exhaustion after Impression Products
Prior to Impression Products, the Federal Circuit had held in Jazz Photo (2001) that foreign sales did not exhaust US patent rights — a patent holder could sell abroad, import the items into the US, and still assert US patents against the importer. Impression Products overruled this: now, an authorized sale outside the United States also exhausts US patent rights in those articles. This significantly affects parallel import (gray market) issues: a patent holder who authorizes sales in Europe cannot use US patent law to block the importation of those same items into the US. The US approach now mirrors the broader international approach and copyright's first sale doctrine in this respect. Note: copyright's first sale doctrine still has domestic limitations under Kirtsaeng v. John Wiley (2013, affirming international first sale for books).
Repair vs. reconstruction
Patent exhaustion permits repair of a purchased article but not reconstruction — which constitutes making a new patented item. The distinction matters because reconstruction is infringement even though the original article was purchased with exhaustion. The Federal Circuit's test (from Aro Manufacturing v. Convertible Top Replacement, S.Ct. 1961) looks at whether the repair/replacement reconstitutes the entire patented invention (reconstruction) or simply restores one part of an otherwise functional article (repair). Factors include: the importance of the replaced component to the patented invention; the relative cost and expected lifespan of the component vs. the whole; whether the patent holder sells the component separately (signaling expectation of replacement). Printer cartridge refilling was found to be permissible repair in Jazz Photo; total rebuild was reconstruction in other cases.
Process patent exhaustion: Quanta v. LG
Quanta Computer v. LG Electronics (S.Ct. 2008) extended exhaustion to method patents when the sold product 'substantially embodies' the method. LG licensed Intel to practice certain LG patents in making chips, but the license tried to reserve the right to assert those patents against Intel's customers (computer makers). The Court held that Intel's authorized sale of chips that substantially embodied LG's method patents exhausted those patents as to downstream customers' use. The principle: if the product's only reasonable and intended use is to practice the patented method, and the product was sold with patent holder authorization, the method patent is exhausted. This prevents patent holders from licensing product manufacture while trying to separately license the use of those products.
Exhaustion and patent licensing strategy
Patent exhaustion has important implications for licensing strategy. A patent holder who licenses a manufacturer to produce products covered by a patent impliedly authorizes the sale of those products, which exhausts the patent as to downstream buyers — unless the license scope clearly does not authorize the specific sales that occurred. License drafters must carefully define the 'authorized sale' scope: exclusive vs. non-exclusive; whether sales to certain geographic markets are authorized; whether the license allows downstream sales or is limited to the licensee's own use; and whether component sales are authorized for the patent covering the complete assembly. A poorly drafted license agreement that inadvertently authorizes sales can exhaust broader patent rights than intended.
Frequently Asked Questions
What is the first sale doctrine (patent exhaustion)?
The first sale doctrine, also called patent exhaustion, holds that a patent holder's exclusive rights in a patented item are exhausted — used up — after the patent holder or a licensee authorized to sell makes an authorized sale of that item. After an authorized first sale, the purchaser (and any subsequent purchaser) can use, resell, repair, or otherwise deal in the item without infringing the patent. The patent holder cannot use patent law to control the article after the first authorized sale — any restrictions on post-sale use must be enforced through contract law (not patent law), and such contract restrictions bind only the immediate buyer, not subsequent purchasers. The doctrine derives from the policy that allowing patent holders to perpetually control articles through the distribution chain would interfere with commerce.
What did Impression Products v. Lexmark hold?
In Impression Products v. Lexmark International (U.S. Supreme Court 2017), the Court held: (1) Domestic patent exhaustion applies even to authorized conditional sales — Lexmark's practice of selling printer cartridges with single-use restrictions and return requirements did not preserve its patent rights; after the authorized sale, the patent was exhausted despite the restrictions. Post-sale restrictions can only be enforced through contract, not patent law. (2) International exhaustion — authorized sales of patented products made abroad also exhaust US patent rights in those items when they are imported into the United States. The Court overruled the Federal Circuit's prior rule that foreign sales did not exhaust US patent rights. After Impression Products, a patent holder who authorizes a sale anywhere in the world cannot use US patent rights to block importation or resale in the US.
What is the difference between repair and reconstruction?
Repair of a patented item is permitted after the first authorized sale — patent exhaustion allows the purchaser to fix and maintain the article. Reconstruction, however, is not permitted — it constitutes making a new patented article and constitutes infringement. The distinction between permissible repair and infringing reconstruction turns on: (1) the importance of the replaced component to the patented invention (a peripheral, easily-replaced part can be repaired/replaced; replacing the entire essential inventive component is more like reconstruction); (2) the life expectancy and relative cost of the component vs. the whole device; (3) whether the patentee has sold the component separately (suggesting it expects repair). Jazz Photo Corp. v. International Trade Commission (Fed. Cir. 2001) held that refurbishing expired single-use film cameras by replacing the film was permissible repair. The repair/reconstruction distinction is fact-intensive.
Does patent exhaustion apply to process patents?
Patent exhaustion applies differently to process (method) patents. Quanta Computer v. LG Electronics (U.S. Supreme Court 2008) held that the sale of a product that substantially embodies a method patent exhausts the patent holder's rights in that method. The principle: if a patent covers both a product and a method of using it, and an authorized sale of the product conveys what is needed to practice the method, the patent on the method is exhausted along with the product patent. Quanta's holding is important for chip patent licensing: LG licensed Intel to make chips covered by LG's patents, but tried to reserve the right to assert the patents against Intel's customers. The Court held that Intel's authorized sale of the chips exhausted LG's method patent rights in the customers' use of those chips.
What is the 'authorized sale' requirement?
Patent exhaustion only applies to authorized sales — sales made by the patent holder or a licensee with authority to sell. An unauthorized sale (infringement of the patent, or a sale by a licensee outside the scope of their license) does not exhaust the patent. Examples of authorized vs. unauthorized sales: (1) Authorized: sale by the patent holder; sale by a licensee with a right to sell the patented product; sale of a product abroad by the patent holder (Impression Products holds this exhausts US rights); (2) Unauthorized: sale of a counterfeit product; sale by a licensee outside their licensed territory; sale of a product that infringes someone else's patent (the seller was not authorized by the patent holder). If a sale is unauthorized, the buyer acquires no patent exhaustion protection and may themselves face patent infringement claims.