Partner
Chen Zang, Ph.D., maintains a comprehensive patent practice, advising clients on all aspects of patent law. He frequently litigates before U.S. district courts and the International Trade Commission (ITC). In addition, Chen has an active practice before the U.S. Patent and Trademark Office (USPTO), encompassing patent drafting, prosecution, and post-grant proceedings. He also provides strategic counseling on a broad range of IP matters, including patent portfolio development and management, due diligence investigations, and opinion work. Drawing on his academic training in physics, Chen is well-versed in technologies across the electrical and mechanical arts. Chen was recognized by Best Lawyers in its list for Best Lawyers: Ones to Watch (2024-2026) in patent law and patent litigation.
Chen has worked on cases covering a wide spectrum of technologies, including wireless communications, semiconductor devices and fabrication, memory controllers, liquid-crystal displays (LCDs) or light-emitting diode (LED) displays, digital signal processors (DSP), computer power systems, robotics, consumer electronics, optical communications, computer networking, computer file storage and management, image or video processing, multimedia distribution and streaming systems, and mobile applications.
Chen also maintains an active patent prosecution and counseling practice. He is experienced in patent application drafting and prosecution, opinion work (invalidity and non-infringement) as well as patent portfolio development and management. He represents clients in technology areas such as 4G/LTE and 5G/NR telecommunication, video coding standards, electric vehicles, autonomous vehicles, unmanned aerial vehicles, positioning and motion-sensing systems, Internet of Things (IoT), consumer electronics, smartphones and cameras, computer hardware and software, wireless communications, semiconductor metrology and fabrication, machine learning, computer vision, image processing systems, optical communications, optical devices, ophthalmic lenses, business methods, financial technologies, and taxi-hailing platforms.
While obtaining his doctorate in physics, Chen conducted research in the areas of optoelectronic devices, display technologies, laser systems, and semiconductor devices.
Adjunct professor of patent law, Howard University School of Law.
In the Matter of Certain Semiconductor Devices and Products Containing the Same
Achieved a comprehensive victory for respondent Innoscience, a global leader in gallium nitride (GaN) power devices, in a high-profile patent dispute before the U.S. International Trade Commission (ITC). The ITC’s Final Determination confirms that Innoscience avoided all patent claims asserted by Infineon.
337‑TA‑1414, ITC, Judge Moore
Jumio Corporation v. FaceTec, Inc.
Representing FaceTec, Inc. in four inter partes reviews (IPRs) relating to groundbreaking 3D liveness detection technology.
IPR2025-00106, -00107, -00108, -00109, PTAB, Judges Khan, Hoang, Baer
337-TA-1267, ITC, Judge Bhattacharyya
1:19-cv-12125, D. Mass., Judges Burroughs, Kelley
IPR2020-00733, -00734, -00735, -00863, PTAB, Judges Grossman, McMillin, Melvin, Saindon, Wieker
NetApp, Inc./HPE et al. v. KOM Software Inc.
IPR2019-00591, -00592, -00594, -00598, -00601, -00603, -00604, -00606, -00607, -00608, PTAB, Judges McGraw, Galligan, Dougal, Fishman
20-2345, -2346; 21-1181, -1075 -1005, Fed. Cir., Judges Prost, Chen, Taranto
Webinar
AI and Patents: Navigating Innovation, Eligibility, and Enforcement AI and Patents: Navigating Innovation, Eligibility, and Enforcement
September 18, 2025
Webinar
Articles
Motivating Suppliers to Take a License by Suing Several Customers Was Not Improper and Did Not Justify Awarding Attorney Fees Motivating Suppliers to Take a License by Suing Several Customers Was Not Improper and Did Not Justify Awarding Attorney Fees
March 22, 2016
LES InsightsArticles
No Attorney Fees Awarded Despite Weak and Changing Positions and No Direct Evidence of Infringement No Attorney Fees Awarded Despite Weak and Changing Positions and No Direct Evidence of Infringement
December 8, 2015
LES InsightsArticles
Court Denies Discovery of Evidence Regarding IRS' Views on License Agreements Between a Patent Owner and Its Affiliates Court Denies Discovery of Evidence Regarding IRS' Views on License Agreements Between a Patent Owner and Its Affiliates
August 18, 2015
LES InsightsArticles
Court Excludes Testimony that Bases Reasonable-Royalty Damages on Unreliable Data and Includes Unpatented Product Features in the Royalty Base Court Excludes Testimony that Bases Reasonable-Royalty Damages on Unreliable Data and Includes Unpatented Product Features in the Royalty Base
June 15, 2015
LES InsightsPress Release
Finnegan Secures Decisive ITC Victory for Innoscience in Final Determination Finnegan Secures Decisive ITC Victory for Innoscience in Final Determination
May 11, 2026
Press Release
Pvtech Secures Stay of New Jersey District Court Litigation Following USPTO Institution of All 10 Ex Parte Reexamination Requests Against Patents Asserted by Jiaxing Super Lighting Pvtech Secures Stay of New Jersey District Court Litigation Following USPTO Institution of All 10 Ex Parte Reexamination Requests Against Patents Asserted by Jiaxing Super Lighting
April 28, 2026
Press Release
Pvtech Achieves Perfect Record at USPTO: Institution of All 10 of 10 Ex Parte Reexamination Petitions Against Patents Asserted by Jiaxing Super Lighting Pvtech Achieves Perfect Record at USPTO: Institution of All 10 of 10 Ex Parte Reexamination Petitions Against Patents Asserted by Jiaxing Super Lighting
April 24, 2026
Commentary
CBP Clears Redesigned Innoscience Chips After ITC Case CBP Clears Redesigned Innoscience Chips After ITC Case
March 12, 2026
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