Dale Chang
310.826.7474
Education
University of Illinois College of Law (JD, 2006, cum laude)
University of Illinois at Urbana-Champaign (BS, 2001, Electrical Engineering)
Dale Chang represents clients in high-stakes patent and trade secrets litigation. He has successfully litigated cases in every major patent venue across the US, including district courts, the International Trade Commission (ITC), and the Patent Trial and Appeal Board (PTAB), both as plaintiff and defense counsel.
Mr. Chang has played significant roles in over 20 trials. In July 2025, he was instrumental in winning a $175 million jury verdict for Headwater Research in its patent suit against Verizon over device-assisted traffic control technology, where he cross-examined Verizon’s corporate representative on the asserted patents. In April 2025, Mr. Chang helped secure a $279 million jury verdict, also for Headwater Research, in its patent suit against Samsung over push-messaging technology.
In 2024, Mr. Chang, Marc Fenster, and Reza Mirzaie led the RAK team that won a $262 million jury verdict and a resulting judgment of $380 million against Western Digital on patents related to magnetic recording media in hard disk drives. He presented plaintiff MR Technologies’ infringement and validity expert, and the jury found all five asserted claims infringed and valid.
In 2022, Mr. Chang notched three trial wins in a row, starting with a complete defense victory for Irving Consumer Products against First Quality in an April 2022 Delaware jury trial on tissue products. That was followed by a plaintiff-side win for Philip Morris in a June 2022 Virginia jury trial against RJ Reynolds on vaping devices. He capped the year off with a complete defense victory for SMR against Magna in a December 2022 Michigan jury trial on side-view car mirrors.
In addition to his recent jury wins, Mr. Chang first-chaired a PTAB trial in a pivotal IPR of a patent on which the patentee had prevailed at the ITC. The PTAB found all claims invalid in January 2022. Earlier that month, Mr. Chang obtained another complete victory from the PTAB, in a post-grant review of a patent asserted in district court. He has since first-chaired several other PTAB trials with a 100% win rate.
Mr. Chang has also successfully litigated trade secrets cases, including LG Chem’s landmark 2020 win at the ITC in its high-profile trade secrets case against SK Innovation on electric car batteries.
Other notable achievements include 2018, 2016, and 2014 jury wins in the Eastern District of Virginia and the District of Delaware, as well as major victories at the ITC in 2020, 2017, and 2015.
Prior to joining Russ August & Kabat, Mr. Chang was counsel at Latham & Watkins, where he litigated IP cases for over 15 years.
Other representative matters include:
- InterDigital v. ZTE, as counsel for InterDigital in asserting three patents relating to 3G and Wi-Fi technologies; the jury found all asserted claims infringed and valid.
- Xperi v. Samsung, as counsel for Xperi entities in cases involving semiconductor technologies, resulted in a favorable settlement that boosted Xperi’s stock price by over 40%.
- Counsel for AMD in its cross-license dispute with Intel, in which Intel agreed to pay US$1.25 billion to AMD to settle all disputes between the parties.
- Symantec v. Computer Associates, as counsel for Symantec in a patent case on anti-virus technology; obtained a favorable settlement after winning key claim construction disputes.