Federal Circuit Explains the Role of Actual Profits in Reasonable Royalty Calculations and the Relationship Between Preliminary Injunctions and Willful Infringement

Jan 6, 2015

Reading Time : 2 min

Aqua Shield’s patent claims “enclosures designed to cover pools or create sun rooms.” Aqua Shield sued Inter Pool Cover Team (IPC) for infringement, and the district court granted summary judgment that IPC infringed and that Aqua Shield’s patent was not invalid. The district court then conducted a bench trial to decide the appropriate remedy for IPC’s infringement. The court ultimately awarded Aqua Shield $10,800 in damages and found that IPC’s infringement was not willful.

To calculate a reasonable royalty, the district court multiplied IPC’s net profits on infringing sales—$135,000—by a rate of 8 percent, in what the district court viewed as a proper “hypothetical negotiation.” The Federal Circuit, however, found reversible error in the district court’s methodology. Specifically, while an “infringer’s actual profits earned during the period of infringement can be relevant to the [hypothetical negotiation] inquiry,” the district court erred in treating IPC’s actual profits “as a royalty cap.” The Federal Circuit stressed that a proper hypothetical negotiation should be forward­looking, inquiring into what the infringer “would have anticipated the profit­making potential of use of the patented technology to be, compared to using non­infringing alternatives.” The district court, on the other hand, looked at only “what turned out to have happened.” The Federal Circuit noted, for example, that IPC might have increased prices to account for a royalty payment in the hypothetical negotiation context, thus implying that IPC’s anticipated profits (and a proper reasonable royalty) may have been larger than its actual profits. The Federal Circuit remanded for the district court to re­determine damages, considering “the advantages of the patented product, the ease and cost of designing around the claimed invention, and the relevance of IPC’s actual profits to what IPC’s expectations would have been in a hypothetical negotiation.”

The Federal Circuit also vacated the district court’s decision that IPC’s infringement was not willful. The district court found no willfulness in large part because Aqua Shield’s request for a preliminary injunction had been denied. The Federal Circuit recognized that the denial of a preliminary injunction may weigh against a later determination of willfulness, but there is “no rigid rule;” the relationship between the two depends on the circumstances. Here, the preliminary injunction was denied “because of personal­jurisdiction questions and because Aqua Shield lacked sufficient knowledge of IPC’s product to make the required showing of a likelihood of success on the merits”—not because of the actual merits of Aqua Shield’s infringement claims or IPC’s invalidity defenses. Therefore, the denial of a preliminary injunction in this case was “a legally insufficient reason for determining that IPC did not willfully infringe.” The Federal Circuit also noted that the evidence failed to demonstrate conclusively that IPC actually designed around Aqua Shield’s patent (even if IPC intended to), which is also relevant to willfulness.

The fact­intensive approach to damages and willfulness taken by the Federal Circuit in this case serves as a reminder of the importance of making and preserving a good record at the trial court. The Federal Circuit’s opinion also reminds that legal authority cannot be read in a vacuum; the factual context of each case matters.

Aqua Shield v. Inter Pool Cover Team, 2014­1263 (Fed. Cir. Dec. 22, 2014) (Taranto (author), Wallach, and Chen).

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.