Timothy L. Tang is a director in Sterne Kessler’s Electronics Practice Group. Tim is an experienced patent portfolio builder and patent office litigator before the Patent Trial and Appeal Board (PTAB). Tim combines his experience both challenging and defending patents before the PTAB with strategic patent prosecution to obtain patents and build portfolios that are technically precise and developed to withstand invalidity challenges. In addition, Tim’s extensive patent drafting and prosecution experience provides an edge for both Petitioners and Patent Owners during PTAB proceedings.

Tim also specializes in Standard Essential Patent (SEP) prosecution, litigation, and licensing obligations. His SEP practice focuses on developing strategies for both SEP holders and SEP implementers. As part of his standards work, Tim completed a year-long secondment to one of the world’s largest technology companies where he served as Standards Counsel to several business units on worldwide standards issues and participation in Standards Development Organizations (SDOs).

Tim’s patent prosecution, patent office litigation, and SEP experience covers a broad variety of technical fields, including standardized technologies, wired and wireless communications, communications theory, digital signal processing, video encoding, streaming video, blockchain, data compression, database management, computer-networking, financial technology, business methods, consumer electronics, computer-based applications, and Internet applications. Tim previously worked in the aerospace industry, testing and troubleshooting air management systems utilized in various commercial aircrafts, and while earning his engineering degree, he developed a relay health monitoring device used to detect faults in nuclear reactor protection systems.

Beyond his legal practice, Tim is actively committed to mentoring and developing the next generation of IP professionals. Tim not only serves on the firm’s Professional Development committee but also designed the Electronics Practice Group’s current onboarding and training program where he personally trains every new attorney and technical specialist that joins the group. Tim was also one of the first PTAB Legal Experience and Advancement Program (LEAP) participants and currently mentors junior LEAP attorneys. The program provides associates with training and development opportunities in PTAB proceedings, including oral argument.

During law school, Tim served as a judicial intern for the Honorable Judge Jimmie V. Reyna of the U.S. Court of Appeals for the Federal Circuit. Tim also competed on behalf of the law school in the AIPLA Giles Sutherland Rich Moot Court Competition and served as an articles editor on the George Mason Law Review.

Tim received his B.S. in electrical engineering, summa cum laude, from the University of Florida. He received his J.D., cum laude, from the George Mason University School of Law.

Representative PTAB Matters:

  • Inter Partes Review IPR2026-0192 (filed by Amazon.com Services, LLC). On behalf of Patent Owner, successfully obtained institution denial on the merits. Technology related to video encoding and the HEVC standard.
  • Meta Platforms, Inc. v. SitNet LLC (on behalf of petitioner, secured final written decisions finding all challenged claims and amended claims unpatentable in IPR2024-00530). Technology related to situational networks.
  • Charter Communications, Inc. v. Adaptive Spectrum and Signal Alignment, Inc. (on behalf of patent owner, successfully obtained institution denials in IPR2025-00012, IPR2025-00013). Technology related to optimizing network and server performance.
  • Volkswagen Group of America, Inc. v. StratosAudio, Inc. (on behalf of petitioner, secured final written decisions finding all challenged claims unpatentable in IPR2021-00712, IPR2021-00716, IPR2021-00720, and IPR2021-00721). Technology related to streaming media to mobile electronic devices.
  • Veeam Software Corporation v. Hybir, Inc. (on behalf of petitioner, secured final written decisions finding all challenged claims unpatentable in IPR2020-01039 and IPR2020-01040). Technology related to data management, file systems, and data backup.
  • Roku, Inc. v. Universal Electronics Inc. (on behalf of petitioner, secured final written decisions finding all claims relevant to corresponding litigation unpatentable in IPR2019-01612, IPR2019-01613, and IPR2019-01614). Technology related to remote control devices for electronic consumer devices. Additionally, secured final written decision finding all challenged claims and amended claims unpatentable in IPR2021-00261.
  • Volkswagen Group of America, Inc. v. Carucel Investments, LP. (on behalf of petitioner, secured final written decisions finding all challenged claims unpatentable in IPR2019-01105). Technology related to mobile wireless base stations.

  • J.D., George Mason University Antonin Scalia Law School, cum laude
  • B.S., Electrical Engineering, University of Florida, summa cum laude

  • District of Columbia
  • United States Patent & Trademark Office
  • Virginia

Speaking Engagement

2026 AIPLA Annual Meeting

Washington, D.C., Westin DC Downtown, October 29, 2026

Webinar

AI and the PTAB: Tools, Trends, and Takeaways

Virtual, August 26, 2025 1:00 PM - 2:00 PM EDT

Webinar

2021 Virtual Patent Trial and Appeal Board Bench & Bar Conference

Virtual, August 5, 2021 1:00 PM - 5:30 PM EST

Related News & Insights

From Timothy L. Tang

IP Strategies and Insights

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February 17, 2026

Sterne Kessler Secures PTAB Institution in IPR Filed for ToughBuilt

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In the News

September 9, 2025

Sterne Kessler Goes Four-for-Four in Final Written Decisions Finding All Challenged Claims Unpatentable on Behalf of Meta Platforms

Sterne, Kessler, Goldstein & Fox Multiple Authors

Firm News

May 1, 2025

Sterne Kessler Helps Secure Two More IPR Denials for Broadband Technology Pioneers

Sterne, Kessler, Goldstein & Fox Multiple Authors

In the News

May 22, 2024

Law360 Names Attys Who Moved Up The Firm Ranks In Q1

Law360 Multiple Authors

In the News

January 4, 2024

The Patent Lawyer: Sterne Kessler Elects Six New Directors in 2024

The Patent Lawyer Multiple Authors

Firm News

January 4, 2024

Sterne Kessler Elects Six New Directors in 2024

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August 8, 2022

Sterne Kessler Raises Over $34,000 for the Legal Aid Society of the District of Columbia

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In the News

April 28, 2022

Patent Tribunal Judges Urge Firms to Send Women, Diverse Lawyers

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In the News

April 1, 2022

Skilled in the Art With Scott Graham (Apr. 2022)

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In the News

March 9, 2022

Acer Ends 4G Patent Lawsuit Against Volkswagen in U.S. Court

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Client Alert

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IP Hot Topic: 2021 PTAB Year in Review: Analysis & Trends

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Reports

March 7, 2022

2021 PTAB Year in Review: Analysis & Trends

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A Niche Within a Niche: The PTAB’s Evolving Motion to Amend Practice

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Sterne Kessler Publishes 2021 PTAB Year in Review: Analysis & Trends Report

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In the News

March 30, 2021

Roku Wipes Out Remote Control Patents At PTAB

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Articles

March 25, 2021

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Intellectual Property Magazine Multiple Authors

In the News

November 23, 2020

Volkswagen Knocks Out 2 Cellular Network Patents At PTAB

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Articles

July 29, 2020

Inside The PTAB’s New Oral Argument Training Program

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In the News

June 26, 2020

PTAB Judges Dish On Argument Strategy In New Atty Training

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Articles

September 3, 2019

SEPs In The Wake Of Qualcomm: 4 Patenting Issues

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