Google Trends - yes - several courts have allowed expert testimony to rely on Google Trends' data.
D.H. Pace Co. v. Aaron Overhead Door Atlanta, LLC, 522 F. Supp. 3d 1315, 1331 (N.D. Ga. 2020).
Court considered an expert opinion based in part on Google Trends data.
Free Speech Coalition, Inc. v. Holder, 957 F. Supp. 2d 564, 578 (E.D. Pa. 2013).
Following trial, the court discussed expert testimony using Google Trends search-frequency data, including evidence of a 215% increase in searches over the relevant period.
Apple, Inc. v. Gang Cao, No. 1:21-cv-1003 (TSE/JFA) (E.D. Va. Jan. 14, 2022), report and recommendation adopted, Order (E.D. Va. Feb. 8, 2022).
The court expressly found that “Google trends data strongly supports” its finding regarding consumer association with Apple’s LIVE PHOTOS mark.
This is not quite the same situation. I'm just posting to let you all know that courts have found them reliable enough to be admitted/used when supported by expert testimony and/or to support expert testimony.
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