Patent litigation attorney
Dale Chang
45 tracked appearances — 34 plaintiff · 11 defendant.
Specialty & background
I'll research this attorney's background and verify the case work before drafting.
Let me verify the Samsung verdict, appeals, and bar admissions.
Let me verify the Western Digital matter and any appellate activity.
Dale Chang — Patent Litigation Practice Summary
Focus areas. Chang's practice centers on patent and trade secret litigation with a heavy electrical-engineering and telecommunications bent, consistent with his BS in electrical engineering. The tracked docket is dominated by wireless communications and standards work — the Headwater Research campaign (device-assisted traffic control, aggregated push messaging, device provisioning, network access control) and the Wilus Institute cases (Wi-Fi/standard-essential portfolio assertions against HP, Samsung and others). Beyond telecom, his verified trial work spans hard disk drive magnetic recording media (MR Technologies), semiconductor and consumer electronics matters, EV battery trade secrets (LG Chem), tissue products (Irving Consumer Products), vaping devices (Philip Morris), and side-view automotive mirrors (SMR). His firm bio also lists software, networking and anti-virus technology. No pharmaceutical or life-sciences patent work appears in either the case list or public sources.
Side preference. Chang is predominantly a plaintiff-side litigator: 34 of 45 tracked appearances are on the plaintiff side, versus 11 on the defense side. Most of that plaintiff work is for patent-holding entities — notably Headwater Research and Wilus Institute — where he has served as lead counsel or trial counsel across multiple venues. His "defendant"-side entries are largely defensive postures for the same clients (e.g., Google LLC v. Headwater, Target Corp. v. Headwater, Samsung v. Wilus — mirror declaratory-judgment or IPR proceedings rather than operating-company defense work). Public sources confirm he does take genuine defense-side engagements as well, including complete defense jury wins for Irving Consumer Products (2022, D. Del.) and SMR against Magna (2022, E.D. Mich.). The overall profile is plaintiff/NPE-side with a meaningful minority defense practice.
Firm context and credentials. Chang has been a partner at Russ August & Kabat since April 2023, based in the firm's Los Angeles office, and is a member of its patent litigation group. Before that he spent over 15 years at Latham & Watkins (Chicago), where he was promoted to counsel effective January 1, 2022. He is admitted to the State Bar of California (No. 248657, admitted 2007) and is a registered patent attorney with the USPTO (Reg. No. 61,476). Education: JD, University of Illinois College of Law, 2006 (cum laude); BS, Electrical Engineering, University of Illinois at Urbana-Champaign, 2001.
Notable matters and PTAB/IPR experience. His most prominent recent results are the Headwater Research campaign: a $175 million jury verdict against Verizon in the Eastern District of Texas (July 24, 2025), where he cross-examined Verizon's corporate representative on the asserted patents, and a $278.79 million jury verdict against Samsung (April 25, 2025, E.D. Tex., reduced to final judgment on the '733 and '117 patents), which was followed by a September 2025 settlement and by PTAB invalidation of claims in one of the two asserted patents. He also helped lead MR Technologies' hard disk drive case against Western Digital, yielding a $262 million verdict in 2024 and a resulting $380 million judgment. Earlier notable work includes LG Chem's 2020 ITC trade secret win against SK Innovation, a 2022 plaintiff-side jury win for Philip Morris against RJ Reynolds, the AMD–Intel cross-license dispute that settled for $1.25 billion, InterDigital v. ZTE, Xperi v. Samsung, and Symantec v. Computer Associates. Chang is an active PTAB practitioner: his firm bio states he has first-chaired several IPR and PGR trials with a 100% win rate, including a January 2022 IPR invalidating all claims of a patent the owner had prevailed on at the ITC. He has appeared in PTAB proceedings both as backup counsel at Latham (e.g., NVIDIA IPR2015-01062, Amphenol and Times Fiber matters) and as pro hac vice/backup counsel for patent owners at RAK.
Caveats: The $175M Verizon verdict and the $278.79M Samsung verdict are corroborated by firm press releases, Reuters Legal and court filings. I was unable to verify any Federal Circuit appeal outcomes in these matters or the exact disposition of Samsung's post-trial JMOL motion; those should be confirmed against the dockets before being relied on.
Firms
Roles
- Counsel10
- counsel9
- lead counsel8
- Lead Counsel2
- of counsel2
- counsel for petitioner2
- Attorney to be Noticed1
- Of Counsel1
- partner1
- trial team1
- back-up counsel1
- attorney of record1
- associate/support counsel1
- backup counsel1
- national counsel1
- PTAB counsel1
- trial counsel1
Cases (45)
- Δ defendantAmazon Web Services Inc. et al. v. Headwater Research LLCRuss August & Kabat · counsel
- π plaintiffAmphenol Corp. v. PPC Broadband, Inc.Latham & Watkins · counsel for petitioner
- π plaintiffAmphenol Corp. v. PPC Broadband, Inc.Latham & Watkins · lead counsel
- π plaintiffAmphenol Corp. v. PPC Broadband, Inc.Latham & Watkins · counsel
- Δ defendantCitadel Securities LLC v. HFT Solutions LLCRuss August & Kabat · Counsel
- Δ defendantGoogle LLC v. Headwater Research LLCRuss August & Kabat · Of Counsel
- π plaintiffHeadwater Research LLC v. Amazon.com, Inc.Russ August & Kabat · lead counsel
- π plaintiffHeadwater Research LLC v. Apple Inc.Russ August & Kabat · Counsel
- π plaintiffHeadwater Research LLC v. Cellco Partnership d/b/a Verizon Wireless et al.Russ August & Kabat · attorney of record
- π plaintiffHeadwater Research LLC v. Charter Communications, Inc.Russ August & Kabat · counsel
- π plaintiffHeadwater Research LLC v. Comcast Cable Communications LLCRuss August & Kabat · trial team
- π plaintiffHeadwater Research LLC v. DISH Network Corp. et al.Russ August & Kabat · counsel
- π plaintiffHeadwater Research LLC v. Samsung Electronics Co., Ltd. et al.Russ August & Kabat · lead counsel
- π plaintiffHeadwater Research LLC v. Samsung Electronics Co., Ltd. et al.Russ August & Kabat · associate/support counsel
- π plaintiffHeadwater Research LLC v. Supercell OyRuss August & Kabat · of counsel
- π plaintiffHeadwater Research LLC v. T-Mobile USA, Inc. et al.Russ August & Kabat · Attorney to be Noticed
- π plaintiffHeadwater Research LLC v. Uber Technologies, Inc.Russ August & Kabat · lead counsel
- π plaintiffHeadwater Research LLC v. Verizon Communications et al.Russ August & Kabat
- π plaintiffHeadwater Research LLC v. Verizon Communications Inc. et al.Russ August & Kabat · Lead Counsel
- π plaintiffHFT Solutions LLC v. Citadel Securities LLCRuss August & Kabat · lead counsel
- π plaintiffHFT Solutions LLC v. Jump Trading LLCRuss August & Kabat · counsel
- π plaintiffHFT Solutions Technologies, LLC v. Citadel Securities, LLCRuss August & Kabat · Counsel
- π plaintiffMR Technologie GmbH v. Western Digital Technologies Inc.Russ August & Kabat · Counsel
- π plaintiffMR Technologies, GmbH v. Western Digital Technologies, Inc.Russ August & Kabat · trial counsel
- Δ defendantPPC Broadband, Inc. v. Amphenol Corp.Latham & Watkins · counsel for petitioner
- Δ defendantPPC Broadband, Inc. v. Amphenol Corporation et al.Latham & Watkins · national counsel
- Δ defendantPPC Broadband, Inc. v. Amphenol Corporation et al.Latham & Watkins · PTAB counsel
- Δ defendantSamsung Electronics Co Ltd v. Headwater Research LLCRuss August & Kabat · counsel
- Δ defendantSamsung Electronics Co., Ltd. v. Headwater Research LLCRuss August & Kabat · backup counsel
- Δ defendantSamsung Electronics Co., Ltd. v. Wilus Institute of Standards and Technology Inc.Russ August & Kabat · counsel
- Δ defendantTarget Corporation v. Headwater Research LLCRuss, August & Kabat · counsel
- Δ defendantUnified Patents PTAB Data v. Headwater Research LLCRuss August & Kabat · back-up counsel
- π plaintiffUntitled caseRuss August & Kabat · partner
- π plaintiffUntitled caseRuss August & Kabat · Counsel
- π plaintiffUntitled caseRuss August & Kabat · Counsel
- π plaintiffUntitled caseRuss August & Kabat · counsel
- π plaintiffUntitled caseRuss August & Kabat · lead counsel
- π plaintiffUntitled caseRuss August & Kabat · lead counsel
- π plaintiffUntitled caseRuss August & Kabat · Counsel
- π plaintiffUntitled caseRuss August & Kabat · Counsel
- π plaintiffUntitled caseRuss August & Kabat · of counsel
- π plaintiffWilus Institute of Standards and Technology Inc. v. [Unknown Defendant]Russ August & Kabat · Lead Counsel
- π plaintiffWilus Institute of Standards and Technology Inc. v. HP Inc.Russ August & Kabat · Counsel
- π plaintiffWilus Institute of Standards and Technology Inc. v. HP Inc.Russ August & Kabat · lead counsel
- π plaintiffWilus Institute of Standards and Technology Inc. v. Samsung Electronics Co. Ltd. et al.Russ August & Kabat · Counsel