Apportionment

Apportionment is the requirement that patent damages reflect only the economic value of the PATENTED FEATURE, not the full value of an entire multi-component product: CONSTITUTIONAL/STATUTORY BASIS: 35 U.S.C. § 284 requires damages 'adequate to compensate for the infringement' — not more; the patent owner is entitled to compensation for what was taken (the patented contribution), not the entire product; Supreme Court origins: Garretson v. Clark (S.Ct. 1884): 'the patentee must in every case give evidence tending to separate or apportion the defendant's profits and the patentee's damages between the patented feature and the unpatented features'; MODERN RATIONALE: many modern products (smartphones, automobiles, complex medical devices) contain hundreds or thousands of patented and unpatented features; allowing a patent owner to base royalties on the entire product price would grant windfalls disproportionate to the actual inventive contribution; ROYALTY BASE AND ROYALTY RATE: apportionment can be applied to: (1) THE ROYALTY BASE: limit the base to the smallest salable patent-practicing unit (SSPPU) rather than the entire product; (2) THE ROYALTY RATE: use a smaller royalty rate applied to the full product price that, when mathematically equivalent, yields the same apportioned result; VirnetX Inc. v. Cisco Systems (Fed. Cir. 2014): the royalty rate must be tied to the incremental value of the patented feature — simply adjusting the rate without proper factual basis is insufficient.

The SSPPU is the Federal Circuit's primary framework for implementing apportionment by limiting the royalty base: DEFINITION: the smallest component or module of the accused product that (1) is sold or can be independently priced and (2) practices the patented invention; ORIGIN: Cornell University v. Hewlett-Packard Co. (N.D.N.Y. 2009, Judge Rader): first major articulation of the SSPPU as a limiting principle; LaserDynamics, Inc. v. Quanta Computer, Inc. (Fed. Cir. 2012): Federal Circuit formally adopted SSPPU and required that royalty base be limited to SSPPU unless EMVR is satisfied; EXAMPLES: (1) if a patent covers a Wi-Fi chip feature, the royalty base should be the Wi-Fi chip price, NOT the entire smartphone price; (2) if a patent covers a brake sensor in a car, the royalty base should be the sensor price, NOT the entire vehicle price; (3) if a patent covers a display technology in a monitor, the royalty base should be the display module, NOT the entire computer system; SSPPU AND ROYALTY RATE RELATIONSHIP: using the SSPPU as the base means the royalty rate will be higher (since the base is smaller); the damages calculation is: SSPPU price × SSPPU royalty rate = same as entire product price × (adjusted) royalty rate; SSPPU IS NOT ABSOLUTE: if no component can be independently identified, priced, or extracted as a separate unit, the SSPPU analysis may be impractical — courts acknowledge this in some software/service contexts.

The entire market value rule (EMVR) is a narrow exception to SSPPU that allows using the entire product price as the royalty base: WHEN EMVR APPLIES: a patent owner can use the entire product as the royalty base ONLY when the patented feature DRIVES customer demand for the entire product — i.e., customers buy the product primarily because of the patented feature; Panduit Corp. v. Stahlin Bros. (6th Cir. 1978); Rite-Hite Corp. v. Kelley Co. (Fed. Cir. 1995): established EMVR for lost profits analysis; LaserDynamics (Fed. Cir. 2012): the entire market value rule applies only when the patented feature is the 'basis for customer demand or substantially creates the value of the component parts'; EXAMPLES OF EMVR APPLICATION: if a pharmaceutical pill contains a single patented active ingredient and that ingredient is why customers buy the pill, the pill price is the appropriate royalty base; if a product is entirely novel due to one patented technology (e.g., an early touchscreen phone where the touchscreen was the revolutionary feature), EMVR may apply; WHY EMVR IS RARELY GRANTED: in modern complex products, no single feature drives demand for the whole product; courts have become increasingly skeptical of EMVR claims; Ericsson, Inc. v. D-Link Systems (Fed. Cir. 2014): in standard-essential patent cases, damages must be apportioned; royalties for FRAND patents must reflect only the patented feature's contribution, not the entire standard's value; RISK: using the full product price without meeting EMVR is a leading ground for Daubert exclusion of a damages expert.

Apportionment is central to the reasonable royalty hypothetical negotiation analysis, particularly through the Georgia-Pacific factors: GEORGIA-PACIFIC FACTOR 13: 'The portion of the realizable profit that should be credited to the invention as distinguished from non-patented elements, the manufacturing process, business risks, or significant features or improvements added by the infringer'; this factor IS the apportionment requirement within the Georgia-Pacific framework; COMPARABLE LICENSE APPORTIONMENT: when using comparable licenses to establish a royalty rate (preferred method), the licenses themselves must be economically comparable; if the comparable license covers a broader portfolio or a different technology, the expert must adjust (apportion) the rate to reflect only the patented invention's contribution; VirnetX v. Cisco: comparable licenses to patent portfolios are not directly comparable to a single-patent license without apportionment adjustments; STANDARD ESSENTIAL PATENTS AND FRAND: SEP owners must apportion their damages to reflect the patented technology's incremental value over prior art solutions — not the value of participating in the standard itself; Ericsson v. D-Link; Georgia-Pacific modified in standard-essential patent context; NASH BARGAINING SOLUTION CONCERNS: some experts use the Nash bargaining solution (50/50 split of incremental profits) as a starting point for royalty negotiations; Uniloc USA, Inc. v. Microsoft Corp. (Fed. Cir. 2011): rejected the 25% rule of thumb as an unacceptable royalty starting point without factual apportionment basis; Nash 50/50 split has also been criticized as similarly untethered from apportionment.

Apportionment is among the most contested issues in modern patent damages cases: EXPERT APPROACH — ROYALTY BASE METHOD: (1) identify the accused component implementing the patent; (2) determine if that component is sold separately (SSPPU); (3) use that component's price as the base; (4) apply the royalty rate appropriate for that component; EXPERT APPROACH — ROYALTY RATE ADJUSTMENT: if no SSPPU can be identified, apportion through the rate; expert uses a 'top-down' approach: start with the incremental value of the patented feature relative to the entire product's value (e.g., patented feature = 3% of total product value); apply this percentage to derive an apportioned royalty; COMMON DISPUTES: (1) SSPPU IDENTIFICATION: defendant argues the claimed base is too large (should be a smaller component); plaintiff argues the component cannot be separated or independently valued; (2) FEATURE COUNTING: crude apportionment by counting features ('there are 500 features in this phone, the patent covers 1 of them, so the royalty is 1/500 of the product price') — courts reject mechanical feature counting as insufficiently principled; (3) EMVR DISPUTES: plaintiff argues patented feature drives demand (to use full product price); defendant counters that other features equally drive demand; (4) CONJOINT SURVEY EVIDENCE: consumer survey evidence showing willingness-to-pay for specific features is admissible to support apportionment; can be challenged under Daubert for survey design flaws; (5) SOFTWARE APPORTIONMENT: in software products without separable components, apportionment is particularly difficult — courts require some principled approach, not just a low overall rate.