Ecofactor, Inc. v. Google LLC

104 F.4th 243
Court of Appeals for the Federal Circuit·Decided June 3, 2024·No. 23-1101·Published·Cited by 4 cases

Opinion

United States Court of Appeals for the Federal Circuit

ECOFACTOR, INC., Plaintiff-Appellee

v.

GOOGLE LLC, Defendant-Appellant

2023-1101

Appeal from the United States District Court for the Western District of Texas in No. 6:20-cv-00075-ADA, Judge Alan D. Albright.

Decided: June 03, 2024

BRIAN DAVID LEDAHL, Russ August & Kabat, Los Angeles , CA, argued for plaintiff-appellee. Also represented by MINNA CHAN, KRISTOPHER DAVIS, MARC A. FENSTER, REZA MIRZAIE, JAMES PICKENS.

ROBERT A. VAN NEST, Keker, Van Nest & Peters LLP, San Francisco, CA, argued for defendant-appellant. Also represented by KRISTIN ELIZABETH HUCEK, LEO L. LAM, ROBERT ADAM LAURIDSEN, EUGENE M. PAIGE.

Before LOURIE, PROST, and REYNA, Circuit Judges.

2 ECOFACTOR, INC. v. GOOGLE LLC

Opinion for the court filed by Circuit Judge REYNA. Opinion dissenting-in-part filed by Circuit Judge PROST. REYNA, Circuit Judge.

EcoFactor sued Google in the Western District of Texas alleging patent infringement of U.S. Patent No. 8,738,327. After discovery and resolution of various motions, the case was heard by a jury. The jury found that Google infringed the asserted claim 5 of the ’327 patent and awarded damages to EcoFactor. Google appeals three of the district court’s orders: the denial of Google’s motion for summary judgment that claim 5 of the ’327 patent was invalid under 35 U.S.C. § 101; the denial of Google’s motion for judgment as a matter of law of non-infringement of the ’327 patent; and the denial of Google’s motion for a new trial on damages . For the following reasons, we affirm.

BACKGROUND

A. U.S. Patent No. 8,738,327 U.S. Patent No. 8,738,327 (“’327 patent”) relates generally to the operation of smart thermostats in computernetworked heating and cooling systems (“HVAC systems”). The primary recited purpose of the patent is to reduce strain on the electricity grid during a period of expected high demand through adjustments to the user’s thermostat settings that reduce the electricity consumed by the user’s HVAC system. ’327 patent at 1:21–27, 9:46–54. Claim 1 of the ’327 patent recites a system “for controlling the operational status of an HVAC system” where “at least one thermostat [is] associated with a structure that receives temperature measurements from inside the structure.” Id. at 9:26–31. Claim 1 includes an “estimation” limitation where “one or more servers receive inside temperatures from the thermostat and compare[] the inside temperatures of the structure and the outside temperatures over time to derive an estimation for the rate of change in inside temperature of the structure in response to outside

ECOFACTOR, INC. v. GOOGLE LLC 3

temperature.” Id. at 9:38–45 (emphasis added). Claim 5 adds that “the estimation [limitation in claim 1] is a prediction about the future rate of change in temperature inside the structure.” Id. at 9:65–67.

B. Procedural History

EcoFactor, owner of the ’327 patent, sued Google for patent infringement over Google’s smart thermostat products , particularly several Nest thermostats. 1 After discovery , Google moved for summary judgment that certain claims of the ’327 patent (including claim 5) were invalid because they were directed to patent ineligible subject matter , an abstract idea, under 35 U.S.C. § 101. The district court denied the motion. J.A. 5046.

The district court also denied Google’s Daubert motion to exclude the opinion of EcoFactor’s damages expert, Mr. Kennedy, rejecting Google’s argument that Mr. Kennedy’s opinion was unreliable and therefore prejudicial. J.A. 2254.

Following a six-day jury trial, the jury found that Google infringed claim 5 of the ’327 patent and awarded EcoFactor damages. J.A. 45–49. Google renewed its motion for judgment as a matter of law (“JMOL”) of non-infringement of the ’327 patent, arguing that the accused products do not measure, but rather, estimate the temperature inside the structure and therefore cannot infringe. Google also moved for a new trial on damages, arguing that the opinion of EcoFactor’s damages expert, Mr. Kennedy, was speculative and unreliable such that it should have been excluded from trial. The district court denied both motions from the bench. J.A. 6662; J.A. 6688.

1 Google acquired Nest Labs, Inc. prior to the underlying lawsuit.

4 ECOFACTOR, INC. v. GOOGLE LLC

Google appeals. We have jurisdiction under 28 U.S.C. § 1295(a)(1).

DISCUSSION

Google raises three issues on appeal. 2 First, Google contends the district court erred in denying Google’s motion for summary judgment that claim 5 of the ’327 patent was directed to patent ineligible subject matter under § 101. Second, Google asserts the district court erred in denying Google’s JMOL motion for non-infringement of the ’327 patent. Third, Google contends the district court erred in denying Google’s motion for a new trial on damages because Mr. Kennedy’s damages opinion was based on unreliable methodology. We address each issue in turn.

I. Patent Eligibility

Google appeals the district court’s denial of summary judgment that claim 5 of the ’327 patent was patent ineligible under § 101.

Section 101 of the Patent Act provides that: “Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title.” 35 U.S.C. § 101. The Supreme Court has articulated a twostep test, commonly referred to as the “Alice” test, for examining whether a patent claims patent-ineligible subject matter. Alice Corp. Pty. Ltd. v. CLS Bank Intern., 573 U.S.

2 This appeal was originally consolidated and included an original appeal by EcoFactor and cross-appeal by Google. The consolidated appeal contained other patents and issues. Prior to oral argument, the parties stipulated to the dismissal of the original appeal by EcoFactor, Appeal No. 22–1974, leaving only Google’s cross-appeal involving the ’327 patent. See Appeal No. 22–1974, ECF No. 59 at 7.

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208, 217–18 (2014). At Alice step one, we review whether a claim is directed to a patent-ineligible concept, such as an abstract idea. Id. At Alice step two, we review whether the claim recites elements sufficient to transform the abstract idea into a patent-eligible application. Id. at 217–18, 221.

Prior to trial, Google filed a motion for summary judgment , arguing that claim 5 of the ’327 patent (among others ) was invalid as directed to patent ineligible subject matter under § 101. The district court reviewed the motion , relying on the Alice inquiry. The district court denied the motion and submitted step two of the Alice inquiry to the jury. J.A. 5046.

At trial, the verdict form asked whether Google met its burden to prove by clear and convincing evidence that the elements of claim 5 of the ’327 patent, when taken individually and as an ordered combination, involved activities or technology that were well-understood, routine, or conventional to a skilled artisan at the time of the invention. J.A. 47. After hearing testimony and receiving evidence from both parties, the jury answered “no” for claim 5 of the ’327 patent. J.A. 47. Google filed a post-trial JMOL motion repeating its § 101 arguments, which the district court denied .

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Ecofactor, Inc. v. Google LLC, 104 F.4th 243 (Fed. Cir. 2024).

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