LAWYER PROFILE
John G Day

John G Day

USA 2026

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Ranked in 1 practice area

About

Provided by Ashby & Geddes

Practice Areas

Intellectual Property

Career

John G. Day is a Director in Ashby & Geddes’ Intellectual Property group. His practice focuses on providing Delaware litigation counsel services for in-house attorneys and many of the nation’s leading intellectual property firms in patent and trademark disputes before the United States District Court for the District of Delaware, both on the plaintiff and defense side. Mr. Day’s IP practice includes a broad variety of technology, involving medical devices, pharmaceuticals, biotechnology, consumer electronics, computer hardware and software, telecommunications, and other technologies.

Mr. Day is serving or has served as Delaware counsel in many major patent cases, including the following representations: Idenix Pharmaceuticals LLC, et al. v. Gilead Sciences, Inc., C.A. No. 14-846-LPS, Fairchild Semiconductor Corporation, et al. v. Power Integrations, Inc., C.A. No. 12-540-LPS, C. R. Bard, Inc., et al. v. AngioDynamics, Inc., C.A. No. 15-218-SLR-SRF, International Business Machines Corporation v. Groupon, Inc, C.A. No. 16-122-LPS-CJB, and Blackberry Limited v. Nokia Corporation, et al., C.A. No. 17-155-RGA.

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Intellectual Property - Delaware

Band 2
Band 2

Individual Editorial

Respected practitioner John Day has extensive experience in IP litigation, including licensing disputes and patent infringement claims.

Strengths

Provided by Chambers

  • John always provides excellent advice on navigating patent matters through the court in Wilmington.

    Intellectual PropertyChambers Guide to the USA
  • John consistently delivers the best client service and work product. He has excellent judgment and is decisive.

    Intellectual PropertyChambers Guide to the USA

Ranked Individuals at Ashby & Geddes (9)

Delaware

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