District Court Orders New Trial on Damages In Light of Virnetx, Inc. v. Cisco Systems, Inc.

Dec 1, 2014

Reading Time : 2 min

At trial, Plaintiff Power Integrations, Inc.’s damages expert, Mr. Putnam, provided a damages opinion for the jury based on the expected harm of Fairchild’s infringement. In doing so, Mr. Putnam testified that “[i]f you have got competitors where the sale of the product causes the patentee to lose something . . . you don’t apportion [damages to only the patented features].”

Apportionment Requirement for Patent Damages

It has been a longstanding requirement that a 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 . . . [or] that the profits and damages are to be calculated on the whole machine, for the reason that the entire value of the whole machine, as a marketable article, is properly and legally attributable to the patented feature.” Garretson v. Clark, 111 U.S. 120, 121 (1884).  Subsequent Federal Circuit precedent has provided further instructions on calculating damages in technical cases where claims are drawn on an individual component of a multi­component product and, when using a “royalty base claim encompassing a product with significant non­infringing components,” the patentee should identify and bases its damages on “the smallest salable infringing unit with close relation to the claimed invention.” See Virnetx, Inc. v. Cisco Sys., Inc., 767 F.3d 1308, 1327 (Fed. Cir. 2014) (quoting Cornell Univ. v. Hewlett­Packard Co., 609 F. Supp. 2d 279, 285 (N.D.N.Y. 2009)).

In VirnetX, the Federal Circuit provided additional clarification on when apportionment must occur. VirnetX’s damage expert had claimed to identify the smallest salable infringing unit and calculated a royalty based on that identification. See id. at 1325­26. On appeal, Cisco Systems, Inc. argued that the lower court’s jury instruction, which stated “In determining a royalty base, you should not use the value of the entire apparatus or product unless . . . the product in question constitutes the smallest salable unit containing the patented feature,” improperly suggested that when using a smallest scalable infringing unit, no further apportionment is needed. See id. at 1327. The Federal Circuit agreed, and held that the patentee must in all cases apportion between the patented and unpatented features. Even where a patentee identifies the smallest salable infringing unit, “the patentee must do more to estimate what portion of the value of that product is attributable to the patented technology.” See id. at 1327­28.

The VirnetX Opinion Required District Court to Reconsider Its Opinion

The court found that the Federal Circuit’s opinion in VirnetX provided a clarification that represented a material difference in law from that which was presented to the court and, therefore, Fairchild had shown good cause for reconsideration. Next, the court reviewed the testimony of Mr. Putnam, who disclaimed reliance on the entire market value rule, and focused on a royalty based on expected harm. Despite Power Integrations’ argument that VirnetX did not require apportionment on its expected harm theory, the court held that VirnetX mandated a new trial on damages. The court noted the “Federal Circuit’s clear directive [in VirnetX] that no matter what the form of the royalty, a patentee must take care to seek only those damages attributable to the infringing features.” Because Mr. Putnam’s analysis did not undertake any apportionment, the court concluded that the prior jury lacked sufficient evidence upon which to base its damages award and, consequently, a new trial on damages is required.

Power Integrations, Inc. v. Fairchild Semiconductor International, Inc. (N.D. Cal.) (Nov. 25 Order).

Share This Insight

Categories

Previous Entries

IP Newsflash

November 17,2025

The district of Delaware recently denied a defendant’s partial motion to dismiss pre-suit willful infringement from the litigation, finding instead that the allegations taken as a whole were sufficient to support pre-suit willfulness at the pleading stage. Specifically, the court found that the allegations as to the defendant’s involvement in a related foreign opposition proceeding and participation in the relevant industry were accompanied by detailed factual support that sufficiently pleaded willful infringement for the pre-suit period.

...

Read More

IP Newsflash

November 14, 2025

The Ninth Circuit recently reversed a district court’s decision to strike a plaintiff’s trade secret claims under the Defend Trade Secrets Act (DTSA) at the discovery stage. In doing so, the Ninth Circuit made clear that under the DTSA, whether a party defined their trade secret with sufficient particularity is a question of fact that generally does not lend itself to resolution in the absence of at least some discovery. This ruling contrasts with the California Uniform Trade Secrets Act (CUTSA), which requires a party to define their trade secrets with reasonable particularity before commencing discovery.

...

Read More

IP Newsflash

November 11, 2025

The Federal Circuit recently vacated a summary judgment ruling of invalidity, holding that the district court erred in applying preclusive effect to the Patent Trial and Appeal Board’s unpatentability findings regarding other claims in the same patent. In doing so, the Federal Circuit reiterated that issue preclusion does not apply where the prior factual determinations were made under a lower standard of proof.

...

Read More

IP Newsflash

November 3, 2025

The Federal Circuit recently clarified the requirement for work disclosed in a reference to qualify as “by another” under pre-AIA Sections 102(a) and (e), holding that there must be complete inventive identity between the information disclosed in the asserted reference and the inventors named on the relevant patent. 

...

Read More

© 2025 Akin Gump Strauss Hauer & Feld LLP. All rights reserved. Attorney advertising. This document is distributed for informational use only; it does not constitute legal advice and should not be used as such. Prior results do not guarantee a similar outcome. Akin is the practicing name of Akin Gump LLP, a New York limited liability partnership authorized and regulated by the Solicitors Regulation Authority under number 267321. A list of the partners is available for inspection at Eighth Floor, Ten Bishops Square, London E1 6EG. For more information about Akin Gump LLP, Akin Gump Strauss Hauer & Feld LLP and other associated entities under which the Akin Gump network operates worldwide, please see our Legal Notices page.