Daniel P. Hughes

Partner

San Diego

daniel.hughes@knobbe.com

858-707-4000

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Overview
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Representative Matters
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Overview

Daniel Hughes represents clients in all types of intellectual property disputes, with a focus on patent litigation. He is also a member of the firm’s antitrust practice group and has experience with both antitrust litigation and with presenting antitrust issues to regulatory bodies, both in the U.S. and abroad.

Daniel also has a wide range of experience in contentious Patent Office proceedings, including inter partes review, ex parte reexamination, supplemental examination and inter partes reexamination.

Daniel regularly counsels clients in pre-litigation matters, including analyzing patent infringement and validity. He also has experience on advising clients on directed patent prosecution and the management of large patent portfolios.

Daniel has worked as a criminal trial prosecutor in the San Diego City Attorney Office through its Trial Attorney Partnership program. In that role, Daniel tried two jury trials to verdict and conducted numerous preliminary hearings on criminal matters.

Daniel received his law degree from the Sandra Day O’Connor College of Law at Arizona State University, graduating cum laude. While in law school, he served as an Associate Editor on the Arizona State Law Journal and as Webmaster for the Executive Moot Court Board. Upon graduation, Daniel received the Janet S. Muller Oral Advocacy Award, recognizing him as the top oral advocate from his graduating class. Prior to his legal education, he received a Bachelor’s Degree in Computer Engineering from the University of Arizona.

Daniel joined the firm in 2014 and became a partner in 2021.

Education

Arizona State University (J.D., 2014), cum laude
University of Arizona (B.S. Computer Engineering, 2011)

Representative Matters

Masimo Corp. v. Philips Electronics North America Corp. and Philips Medizin Systeme Boblingen GmbH. (D. Del. 2014).

Represented Masimo in the second phase of patent litigation and antitrust litigation involving pulse oximetry resulting in a grant of summary judgment of infringement. In an earlier phase of the case relating to patent infringement, Masimo won a jury verdict of more than $466 million. The second patent infringement and antitrust phase of the case was resolved by a settlement in which Philips agreed to pay Masimo $300 million.

Telecommunications Systems, Inc. v. Cassidian Communications, Inc. (E. D. Tex. 2014).

Represented Cassidian in a case regarding voice over internet protocol and emergency services patents. Case was settled favorably prior to claim construction.

Ex Parte Reexamination No. 90/014,141

Represented client in ex parte reexamination involving geo-location notifications for mail delivery. All original claims were found unpatentable by the Patent Office.

Supplemental Examination No. 96/000,240 for Horiba, LTD

Represented Horiba in supplemental examination involving apparatus to measure exhausts gases from car engines. After a potential infringer asserted that patent was invalid over prior art, submitted prior art to Patent Office and successfully obtained claims that overcame prior art and preserved claim scope.

Hammond Development International Inc., v. Amazon, Inc., 1:20-CV-00342-ADA

Represented Amazon in patent litigation involving eight asserted patents. Also represented Amazon in the companion inter partes review proceedings. Successfully obtained a covenant not to sue on all asserted patents after IPR proceedings were substantially complete.

Seeminex.com Inc. v. Wrethink Inc., 37-2019-00019157-CU-BC-CTL

Represented Seeminex in a quasi-contract and intellectual property dispute in California state court. Achieved a favorable settlement on behalf of Seeminex.