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ARTICLE · 08 AUGUST 2025

D. Mass. Patent Litigation Update: June 2025

Finnegan, Henderson, Farabow, Garrett & Dunner LLP
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In Baby Jogger, LLC, v. Monahan Products, LLC d/b/a UPPAbaby, No. 24-cv-11582, Judge Burroughs denied Defendant's motion for summary judgment of equitable estoppel.

United StatesIntellectual Property
Matthew C. Berntsen
Matthew C. Berntsen
Ryan A Gonzalez
Ryan A Gonzalez
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This is part of a series of articles discussing recent orders of interest issued in patent cases by the United States District Court for the District of Massachusetts.

In Baby Jogger, LLC, v. Monahan Products, LLC d/b/a UPPAbaby, No. 24-cv-11582, Judge Burroughs denied Defendant's motion for summary judgment of equitable estoppel.

Equitable estoppel is established when: (1) the patentee, through misleading conduct, leads the alleged infringer to reasonably infer that the patentee does not intend to enforce its patent against the alleged infringer; (2) the alleged infringer relies on that conduct; and (3) due to its reliance, the alleged infringer will be materially prejudiced if the patentee is allowed to proceed with its claim.

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