Patent Infringement Damages

35 U.S.C. § 284 provides that upon finding infringement, the court shall award damages 'adequate to compensate for the infringement, but in no event less than a reasonable royalty': TYPES OF PATENT DAMAGES: (a) REASONABLE ROYALTY: the most commonly awarded form; what a willing licensor and willing licensee would have agreed to in a hypothetical negotiation at the time infringement began; the floor — courts always award at least a reasonable royalty if infringement is found; (b) LOST PROFITS: more valuable if provable — the additional profits the patent owner WOULD have made but for the infringement; requires proving the patent owner would have captured the infringing sales; (c) PRICE EROSION DAMAGES: if the infringement forced the patent owner to lower prices, price erosion compensates for the reduced margin on legitimate sales; often combined with lost profits; (d) ENHANCED DAMAGES (§ 284): treble damages (up to 3x) for willful infringement; discretionary — not automatic even on willfulness finding; requires an 'egregious' case beyond typical infringement; (e) ATTORNEY FEES (§ 285): in exceptional cases, the prevailing party can recover attorney fees; Octane Fitness v. ICON Health (S.Ct. 2014): lowered standard to 'totality of circumstances'; (f) INTEREST: pre-judgment interest from the date of infringement to judgment; post-judgment interest on the judgment amount; WHAT IS NOT RECOVERABLE: consequential damages beyond lost profits (e.g., loss of market share, harm to reputation) are generally not recoverable in patent cases; punitive damages beyond the § 284 trebling cap are not available in patent cases; MARKING AND NOTICE: if the patent owner failed to mark products (§ 287), damages are limited to post-notice infringement (from when the infringer received actual notice of the patent).

A reasonable royalty is the royalty rate a hypothetical willing licensor and willing licensee would have agreed upon at the time infringement began: THE HYPOTHETICAL NEGOTIATION: Georgia-Pacific Corp. v. United States Plywood Corp. (S.D.N.Y. 1970) established 15 factors for determining a reasonable royalty; courts still use these factors as an analytical framework; KEY GEORGIA-PACIFIC FACTORS: (1) royalties the patent owner received for licensing the patent to others; (2) rates paid by licensees for comparable patents in the same field; (3) the nature and scope of the license (exclusive/non-exclusive, territory, field of use); (4) the licensor's established policy of maintaining exclusivity by not licensing; (5) the commercial relationship between the licensor and licensee (competitors vs. non-competitors); (6) the contribution the patent makes to the licensee's product vs. other features; (7) the commercial success of the patent's embodiment; (8) the utility and advantages of the patent over old technology; (9) the nature of the patented invention; (10) the extent to which the infringer has used the invention; (11) the usual profit margin in the relevant business; (12) the portion of profit in a convoyed sale attributable to the patented feature; (13) the opinion of qualified experts; (14) the result of a hypothetical negotiation between the parties; (15) the date the hypothetical negotiation would have occurred; THE HYPOTHETICAL NEGOTIATION DATE: the hypothetical negotiation is assumed to have occurred at the time the infringer first began infringing (the 'book of wisdom' allows some use of later evidence); COMPARABLE LICENSES: the most important and most disputed factor; parties argue extensively over which licenses are comparable and how to adjust for differences (different technologies, different deal structures, coerced vs. arms-length).

Lost profits are available when the patent owner can establish they would have made the infringer's sales but for the infringement: PANDUIT TEST (Panduit Corp. v. Stahlin Bros. Fibre Works, 6th Cir. 1978): four elements: (1) DEMAND: there was demand for the patented product; (2) ABSENCE OF ACCEPTABLE NON-INFRINGING SUBSTITUTES: no non-infringing alternatives that buyers would have accepted; if there is an acceptable substitute, the infringer's customers might have gone elsewhere (not to the patent owner); (3) MANUFACTURING AND MARKETING CAPACITY: the patent owner had the capacity to make and sell the additional units; (4) AMOUNT: the amount of profits the patent owner would have made; ABSENCE OF NON-INFRINGING SUBSTITUTES (element 2) is the most contested: the infringer will argue that competitors' products (which don't infringe) are acceptable substitutes; if accepted, the patent owner must calculate the market share they would have captured even if buyers had the substitute available (the two-supplier market vs. multi-supplier market analysis); TWO-SUPPLIER MARKET: if only the patent owner and the infringer sell in the market (no acceptable substitutes), the patent owner captures all the infringer's lost sales; this is the most favorable lost profits scenario; MULTI-SUPPLIER MARKET: if there are multiple non-infringing alternatives, the patent owner captures only their proportionate market share; WHAT LOST PROFITS REQUIRE IN PRACTICE: detailed financial model showing: actual revenues from the infringer; patent owner's variable costs for those units (not full allocated cost); contribution margin the patent owner would have earned; PRICE EROSION COMPONENT: if the infringement forced the patent owner to lower prices to compete, each unit sold at the lower price resulted in lost margin — price erosion damages compensate for this; difficult to prove causation but powerful when established; CONVOYED SALES: lost profits can include profits on non-patented products that would have been sold alongside the patented product (e.g., accessories, services, upgrades).

Courts require that patent damages be apportioned to the value contributed by the patented technology, not the entire product: THE APPORTIONMENT REQUIREMENT: a patent covering one component or feature of a complex product cannot claim royalties based on the entire product's value; the royalty base must be apportioned to reflect only the patented feature's contribution to the product's value; SMALLEST SALABLE PATENT-PRACTICING UNIT (SSPPU): LaserDynamics v. Quanta Computer (Fed. Cir. 2012): the royalty base should be the smallest component that practices the patent — not the entire product; if a patent covers an optical disc drive feature, the royalty base is the optical drive, not the entire computer; courts require the royalty base to be the SSPPU unless the entire market value rule applies; ENTIRE MARKET VALUE RULE (EMVR): NARROW EXCEPTION: if the patented feature drives customer demand for the entire product (customers buy the product specifically because of the patented feature), the entire product value can be the royalty base; difficult to prove — courts apply it narrowly; Rite-Hite Corp. v. Kelley (Fed. Cir. 1995): EMVR requires the patented feature to be the basis for customer demand; Lucent Technologies v. Gateway (Fed. Cir. 2009): EMVR does not apply when the patented feature is one of many features; the patented feature must be the 'value driver'; APPORTIONMENT FOR SOFTWARE PATENTS: Cornell v. Hewlett-Packard (N.D.N.Y. 2009): must apportion even for software features; the royalty base cannot be the entire server when the patent covers one chip feature; APPORTIONMENT METHODOLOGY: technical experts identify which components are covered by the patent; financial experts calculate the value contribution of those components; regression analysis; consumer surveys; feature analysis; STACKING CONCERNS: where multiple patents cover parts of a product, each patent owner's royalty must be apportioned; together, all the royalties cannot exceed the total product margin.

Willful infringement can result in enhanced damages of up to three times the compensatory damages awarded: STATUTORY BASIS: 35 U.S.C. § 284: 'the court may increase the damages up to three times the amount found or assessed'; the enhancement is discretionary, not automatic; WILLFULNESS STANDARD — HALO ELECTRONICS v. PULSE ELECTRONICS (S.Ct. 2016): overruled the Federal Circuit's two-prong test; adopted a flexible, totality-of-circumstances approach; the key inquiry is whether the infringer's conduct was 'egregious' — characterized as willful, wanton, malicious, bad-faith, deliberate, consciously wrongful, flagrant, or characteristic of a pirate; SUBJECTIVE CULPABILITY: Halo requires the focus on the infringer's subjective knowledge and intent; objective unreasonableness is relevant but not sufficient; a 'reckless' infringer can be enhanced; WHAT TENDS TO SHOW WILLFULNESS: received a demand letter or notice and continued infringing; knew about the patent before infringement began; copied the patent owner's product; no good-faith belief in invalidity or non-infringement; READ vs. SEAGATE: pre-Halo, the Federal Circuit's Seagate test required objective recklessness + subjective knowledge; Halo dropped the objective prong; ENHANCED DAMAGES DISCRETION: even after a willfulness finding, the court has discretion to decline enhancement; small enhancements (1.5x) are more common than the full 3x; courts consider the degree of culpability, size and financial condition of the infringer, closeness of the case, and need for deterrence; READ CORP. v. PORTEC (Fed. Cir. 1992): pre-Halo factors courts consider in deciding whether to enhance; still relevant post-Halo; OPINION OF COUNSEL: a good-faith, competently-rendered opinion of counsel (invalidity or non-infringement) prior to infringement can defeat or mitigate willfulness; Attorney-Client Privilege: Knorr-Bremse (Fed. Cir. 2004): adverse inference no longer drawn from failure to produce opinion.