Entire Market Value Rule

The entire market value rule (EMVR) is a patent damages doctrine that allows a plaintiff to calculate a reasonable royalty by applying a royalty rate to the full price of an accused multi-component product — rather than only to the value of the patented component. ORIGIN: Aro Manufacturing Co. v. Convertible Top Replacement Co. (S.Ct. 1964) and earlier cases; codified in 35 U.S.C. § 284 which provides for 'damages adequate to compensate for the infringement, but in no event less than a reasonable royalty'; EMVR APPLIES WHEN: the patented feature is the 'basis for customer demand' for the entire product — i.e., customers buy the whole product primarily because of the patented feature; example: in early computer peripheral cases, if a patented interface was the reason customers chose a particular computer, the whole computer price was the royalty base; EMVR AFTER LASERDY NAMICS (Fed. Cir. 2012): the Federal Circuit significantly restricted EMVR application; LaserDynamics, Inc. v. Quanta Computer: the EMVR is not merely a rule about royalty rate adjustment — it is a strict standard; to use the entire product price as the royalty base, the plaintiff must show by a preponderance of the evidence that the patented feature is the DRIVER of customer demand for the whole product; merely showing that the feature is useful, important, or even important to customers is INSUFFICIENT; CURRENT STANDARD: EMVR requires more than 'contributes to' or 'is valued by' customers; the patented feature must DRIVE DEMAND — i.e., customers choose the whole product specifically because of the patented feature; this standard is rarely met in modern multi-component products (smartphones, computers, enterprise software).

Apportionment is the principle that patent damages must reflect the value attributable to the patented invention, not the entire value of the accused product. LEGAL BASIS: Garretson v. Clark (S.Ct. 1884): the patent owner must apportion between the patented improvement and the prior art features; 35 U.S.C. § 284; Panduit Corp. v. Stahlin Bros. (6th Cir. 1978) lost profits apportionment; SMALLEST SALABLE PATENT-PRACTICING UNIT (SSPPU): if the patented feature is part of a larger product, the royalty base should generally start with the SSPPU — the smallest component of the accused product that includes the patented functionality and is separately sold; VirnetX, Inc. v. Cisco Systems (Fed. Cir. 2014): the SSPPU framework is the default starting point when the entire product price cannot be used under the EMVR; FURTHER APPORTIONMENT: even when using the SSPPU as the base, further apportionment may be required if the SSPPU has multiple features and only some are patented; the royalty should reflect only the value of the PATENTED features of the SSPPU; ENTIRE PRODUCT vs. SSPPU: the court in Ericsson v. D-Link (Fed. Cir. 2014) clarified that there is no per se requirement to use SSPPU — using the full product price as a base with a lower royalty rate may be appropriate where the SSPPU is not separately sold or where comparable licenses in the industry use the full product price; the key is that the damages calculation must ultimately apportion to reflect only the value of the patented contribution; ROYALTY RATE ADJUSTMENT: if a higher royalty base (whole product price) is used, the royalty rate must be commensurately lower to reflect proper apportionment.

Courts analyze EMVR and apportionment claims through expert testimony and the Georgia-Pacific framework: EXPERT TESTIMONY REQUIREMENTS: plaintiffs must present expert testimony (damages expert) who: (1) identifies the royalty base (full product price or SSPPU); (2) explains why the EMVR applies (if full price used); (3) performs apportionment showing only patented features' value is captured; (4) applies a royalty rate derived from comparable licenses or Georgia-Pacific factors; DAUBERT CHALLENGES: defendants routinely challenge plaintiff's damages expert under FRE 702/Daubert on: failure to apportion; inappropriate royalty base without EMVR justification; using non-comparable licenses; COMMON EMVR REJECTION SCENARIOS: (1) smartphone patent: a patent covering one camera feature out of hundreds — EMVR rejected because the camera feature alone doesn't drive demand for the phone; royalty base limited to camera module SSPPU or further apportioned; (2) software patent: a patent on one algorithm within an operating system — EMVR rejected; royalty limited to the patented function's value; (3) automotive patent: a patent on one fuel injector feature — royalty base limited to the fuel injector component, not the whole car; SUCCESSFUL EMVR: historically applied where the patented feature was the central, differentiating feature of the entire product; modern examples are increasingly rare given product complexity; COMPARABLE LICENSES: using actual industry licenses can support the royalty base — if comparable licenses use the full product price (e.g., standard-essential patent FRAND rates applied to device price), this can justify using the full product price even without strict EMVR proof (Ericsson v. D-Link).

SEP licensing presents a specific context where the EMVR-vs-apportionment tension is most acute: SEP ROYALTY BASE: standard-essential patents (SEPs) cover technology incorporated into a standard (e.g., WiFi, LTE, Bluetooth); every product implementing the standard must implement the SEP claims; patent owners often seek royalties based on the entire product price (a smartphone's full price for an LTE patent); ROYALTY STACKING: if each of 100 SEP owners takes a percentage of the full product price, aggregate royalties can exceed the product's value; courts use apportionment to prevent stacking; ERICSSON v. D-LINK (Fed. Cir. 2014): for SEPs, FRAND royalties should reflect the value of the patented contribution to the standard, not the entire value of the standardized technology or the end product; comparable licenses using the product price can be appropriate IF properly adjusted for differences between the licensed and accused products; QUALCOMM FRAND DISPUTES: Qualcomm charged FRAND royalties on a percentage of device price; FTC challenged this as excessive apportionment; 9th Circuit reversed (FTC v. Qualcomm, 2020); but EU cases continue to wrestle with SEP royalty base; ENTIRE STANDARD VALUE vs. PATENT VALUE: even if the patented feature contributes to the standard's value, the standard has value from many contributors; the EMVR cannot be used to capture the full value of the standard just because the patent is SEP; apportionment among all SEP contributors is required; SMALLEST SALABLE COMPONENT for FRAND: some courts suggest SSPPU for SEPs should be the baseband chip (which implements the standard), not the whole device.

EMVR and apportionment doctrine significantly affect patent litigation strategy on both sides: PLAINTIFF STRATEGY: (1) identify the SSPPU early in case assessment — if the SSPPU is separately sold at a reasonable price, use it as the base; if not separately sold or very low-priced, investigate whether EMVR can be established; (2) gather evidence of customer demand patterns — surveys, marketing materials, internal defendant documents showing the patented feature drives purchasing decisions; (3) identify comparable licenses that use the full product price — if industry licensing practice uses device price (e.g., FRAND licenses), this supports using the same base; (4) use technical experts to explain what the patented contribution adds vs. prior art; DEFENDANT STRATEGY: (1) challenge plaintiff's royalty base at Daubert and trial through expert testimony on proper apportionment; (2) show the product has many valuable non-patented features — each customer buys for a bundle of reasons; (3) identify the SSPPU and argue the royalty must be calculated from the SSPPU; (4) provide alternative license comparables that use SSPPU-level or per-unit fees; (5) document internal pricing information showing the patented component's standalone value; EARLY CASE ASSESSMENT: parties should estimate maximum potential damages based on reasonable apportionment — many cases turn on damages more than liability; a clear view of realistic damages shapes settlement posture from day one; DAMAGES EXPERTS: selecting a credible damages expert who has not been excluded under Daubert is critical; experts who have had damages models excluded in prior cases are risky.