John G. Day

John is the senior member of the Ashby & Geddes IP Practice Group.  For the past 30 years, John’s practice has been focused on intellectual property litigation in the United States District Court for the District of Delaware, where he is ranked as an AV Preeminent Peer Rated Attorney on Martindale Hubbell, and where he has been ranked as a top litigator by Chambers USA for the past 16 years.  Acclaimed for proving “excellent advice on navigating patent matters through the court[s]” (Chambers USA),  John has represented clients ranging from some of the world’s largest and best known companies in a broad range of technologies that include biotechnology, pharmaceuticals, medical devices, computer hardware, computer software, consumer electronics, telecommunications and manufacturing, to innovative start-up companies.  Chambers USA reports that “John consistently delivers the best client service and work product” and “[h]e has excellent judgment and is decisive.” 

Select Career Highlights:

• Member of the trial team that won a $2.6 billion jury verdict in Idenix Pharmaceuticals v. Gilead, Inc., which at the time was the largest patent damages verdict ever awarded

• Member of the trial team that successfully defended media measurement start-up HyphaMetrics, Inc. in a patent infringement lawsuit brought by Nielson, inc., the largest company in the audience measurement field, in what was reported to be Nielsen’s first patent jury trial loss  

Clients include:

• Amazon

• Anker Trading

• Depuy Synthes

• DISH Technologies

• Johnson and Johnson

• Monolithic Power Systems

• On Semiconductor

• Realtek Semiconductor