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Chen Zang, Ph.D.
Partner
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  • 901 New York Avenue, NW
  • Washington, DC 20001-4413
+1 202 408 4416
chen.zang@finnegan.com chen.zang@finnegan.com

Chen Zang, Ph.D.

Partner

  • +1 202 408 4416 +1 202 408 4416
  • chen.zang@finnegan.com chen.zang@finnegan.com
  • 901 New York Avenue, NW
  • Washington, DC 20001-4413
  • vCard

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.

Et Cetera

  • Adjunct professor of patent law, Howard University School of Law.

Experience

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

In the Matter of Certain Power Inverters and Converters, Vehicles Containing the Same, and Components Thereof

BMW of North America, LLC and Bayerische Motoren Werke AG (collectively, “BMW”) earned a final determination rebuffing an International Trade Commission (ITC) complaint by Arigna Technology Limited (“Arigna”) aiming to ban the importation and sale of certain of BMW’s innovative mild-hybrid, hybrid, and all-electric SUVs and other vehicles.

337-TA-1267, ITC, Judge Bhattacharyya

iRobot v. SharkNinja

Represented petitioner SharkNinja in district court litigation and related inter partes reviews related to robot vacuum cleaner technology. Successfully cancelled all claims iRobot asserted in the district court litigation at the PTAB.

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.

Represented petitioners NetApp and HPE in a series of thirteen inter partes review proceedings. Secured institution of all claims of all challenged KOM Software patents on data storage methods and continued representation on appeal.

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

Insights

Webinar

AI and Patents: Navigating Innovation, Eligibility, and Enforcement

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 Insights

Articles

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 Insights

Articles

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 Insights

Articles

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 Insights

Articles

Selling a Product Preprogrammed to Perform a Patented Method Cannot, by Itself, Constitute Direct Infringement Selling a Product Preprogrammed to Perform a Patented Method Cannot, by Itself, Constitute Direct Infringement

February 3, 2015

LES Insights

News

Press 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

Law360

Press Release

Finnegan Achieves Massive CBP Victory for Innoscience, Capping a Series of Decisive Wins Against EPC Finnegan Achieves Massive CBP Victory for Innoscience, Capping a Series of Decisive Wins Against EPC

February 24, 2026

Press Release

Finnegan Secures Major ITC Victory in Initial Determination for Innoscience Finnegan Secures Major ITC Victory in Initial Determination for Innoscience

January 29, 2026

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Admissions and Education

Admissions

  • U.S. Patent and Trademark Office
  • California
  • District of Columbia
  • U.S. Patent and Trademark Office
  • U.S. District Court, N.D. California
  • U.S. Court of Appeals, Federal Circuit

Education

University of Texas School of Law
J.D., 2014
The Ohio State University
Ph.D., Physics, 2011
University of Science and Technology of China
B.S., Physics, 2003

Languages

  • Chinese (Mandarin)

Chen's Practices

AI + Finnegan
AI + Patent
AI + Trade Secrets
Diligence, Licensing, and Opinions
Standard Essential Patents (SEPs)
Global IP Enforcement, Litigation, and Trials
ITC Section 337 Investigations and Trials
Patent Litigation and Trials
Standard Essential Patents (SEPs)
Trade Secrets
Patent Office Invalidation Proceedings
PTAB Invalidation Proceedings: IPR and PGR
Prosecution and Portfolio Management
Appeals to the PTAB
IP Portfolio Management
Opinions and Counseling
Patent Drafting and Prosecution
Standard Essential Patents (SEPs)
Trade Secrets

Chen's Industries

AI, Electronics, and Information Technology
Artificial Intelligence (AI) and Machine Learning (ML)
Augmented Reality/Virtual Reality (AR/VR)
Electrical and Computer Technology
Electronic Devices and Components
Robotics
Chemicals, Industrials, and Materials
Manufacturing
Communications
Financial Services and Business Systems
Internet of Things (IoT)
Consumer Goods and Services
Consumer Products
Transportation and Logistics
Aerospace, Aviation, and Unmanned Aerial Systems (UAS)
Automotive and Smart Mobility Tech

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