Patent litigation attorney
Marc A. Fenster
93 tracked appearances — 77 plaintiff · 16 defendant.
Specialty & background
Marc A. Fenster is a first-chair trial lawyer and the chair of the Patent Litigation department at Russ August & Kabat, where he has built a practice focused on representing patent owners in high-technology disputes. His work primarily involves complex technologies, including wireless communications, data encryption and compression, mobile camera and image processing, and targeted internet advertising. The authoritative case list and a review of his broader public record show a consistent practice of representing plaintiffs against large, established technology companies.
Mr. Fenster's career is marked by a string of high-value jury verdicts for his clients. He has secured significant awards as lead counsel in numerous cases, including verdicts against Western Digital ($262 million and $315 million in separate cases), Samsung ($279 million), Amazon ($122 million), and Google ($20 million). He also led the team that secured a settlement for Corephotonics in a multi-year patent dispute with Apple over mobile camera technology. In the tracked case, Intent IQ LLC v. Viant Technology LLC, Mr. Fenster served as lead counsel for the plaintiff, consistent with his focus on patent assertion.
Mr. Fenster has been with Russ August & Kabat since 2003, when he was hired to establish the firm's patent litigation group. He was previously an attorney in the intellectual property and litigation groups at Irell & Manella LLP from 1995 to 2003. While not his primary focus, Mr. Fenster has experience representing clients in inter partes review (IPR) and other proceedings before the Patent Trial and Appeal Board (PTAB), often in parallel with district court litigation.
He earned his J.D. from the University of California, Los Angeles School of Law in 1995 and also holds a Master's and a Bachelor's degree in Bio-Engineering from the University of California, San Diego.
Firms
Roles
- lead counsel48
- Lead Counsel25
- counsel7
- Counsel5
- Of Counsel1
- of counsel1
- Lead Trial Counsel1
- attorney1
- additional counsel1
- trial counsel1
- partner1
Cases (93)
- π plaintiffAlmondnet, Inc. v. Amazon.com, Inc.Russ August & Kabat · Lead Trial Counsel
- π plaintiffAlmondNet, Inc. v. Lotame Solutions, Inc.Russ August & Kabat · lead counsel
- Δ defendantAmazon Web Services Inc. et al. v. Headwater Research LLCRuss August & Kabat · counsel
- Δ defendantAmazon.com, Inc. v. AlmondNet, Inc.Russ, August & Kabat · Of Counsel
- Δ defendantCitadel Securities LLC v. HFT Solutions LLCRuss August & Kabat · Lead Counsel
- π plaintiffCobblestone Wireless LLC v. Apple Inc.Russ August & Kabat · Lead Counsel
- Δ defendantCobblestone Wireless LLC v. Apple Inc.Russ August & Kabat · lead counsel
- π plaintiffCobblestone Wireless LLC v. Samsung Electronics America, Inc. et al.Russ August & Kabat · lead counsel
- π plaintiffDatonics LLC et al. v. Amazon.com, Inc.Russ August & Kabat · lead counsel
- π plaintiffDatonics LLC v. The Trade Desk, Inc.Russ August & Kabat · Lead Counsel
- π plaintiffDish Technologies L.L.C. et al. v. Cogeco Inc. et al.Russ August & Kabat · lead counsel
- π plaintiffDISH Technologies L.L.C. v. Philo, Inc.Russ August & Kabat · lead counsel
- Δ defendantGoogle LLC v. Headwater Research LLCRuss August & Kabat · Lead Counsel
- Δ defendantGoogle LLC v. Virtamove, Corp.Russ August & Kabat
- π plaintiffHeadwater Research LLC v. Amazon.com, Inc.Russ August & Kabat · lead counsel
- π plaintiffHeadwater Research LLC v. Cellco Partnership, d/b/a Verizon Wireless et al.Russ August & Kabat · Lead Counsel
- π plaintiffHeadwater Research LLC v. Charter Communications, Inc.Russ August & Kabat · lead counsel
- π plaintiffHeadwater Research LLC v. Deutsche Telekom (Sprint, T-Mobile)Russ August & Kabat · lead counsel
- π plaintiffHeadwater Research LLC v. Supercell OyRuss August & Kabat · partner
- π plaintiffHeadwater Research LLC v. T-Mobile USA, Inc. et al.Russ August & Kabat · Lead Counsel
- π plaintiffHeadwater Research LLC v. Tencent Holdings LimitedRuss August & Kabat · lead counsel
- 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 · Lead Counsel
- π plaintiffHeadwater Research LLC v. Walmart Inc.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 · Lead Counsel
- π plaintiffIngeniospec LLC v. Amazon.com, Inc.Russ August & Kabat · lead counsel
- π plaintiffIngenioSpec LLC v. Bose CorpRuss August & Kabat · lead counsel
- π plaintiffIngenioSpec LLC v. OO Electronics Co LTD et al.Russ August & Kabat · Lead Counsel
- π plaintiffIngeniospec LLC v. Snap Inc.Russ August & Kabat · Lead Counsel
- π plaintiffIntent IQ LLC v. Viant Technology LLCRuss August & Kabat · lead counsel
- π plaintiffIntent IQ, LLC v. Adform, Inc.Russ August & Kabat · lead counsel
- π plaintiffIntent IQ, LLC v. MNTN, Inc.Russ August & Kabat · lead counsel
- π plaintiffIntent IQ, LLC v. MNTN, Inc.Russ August & Kabat · Lead Counsel
- π plaintiffIntent IQ, LLC v. tvScientific, Inc.Russ August & Kabat · lead counsel
- π plaintiffMR Technologie GmbH v. Western Digital Technologies Inc.Russ August & Kabat · Lead Counsel
- Δ defendantPetitioner v. Patent OwnerRuss August & Kabat · lead counsel
- π plaintiffQomplx LLC v. Palo Alto Networks, Inc.Russ August & Kabat · lead counsel
- π plaintiffRealtime Data LLC v. Array Networks Inc. et al.Russ August & Kabat · lead counsel
- π plaintiffRealtime Data LLC v. Reduxio Systems, Inc. et al.Russ August & Kabat · Lead Counsel
- π plaintiffRealtime Data, LLC v. AcronisRuss August & Kabat · Lead Counsel
- π plaintiffRealtime Data, LLC v. Carbonite, Inc. et al.Russ August & Kabat · Lead Counsel
- π plaintiffRealtime Data, LLC v. Carbonite, Inc. et al.Russ August & Kabat · lead counsel
- Δ defendantRed Hat, Inc. v. VirtaMove, Corp.Russ August & Kabat · Counsel
- π plaintiffRedstone Logics LLC v. Advanced Micro Devices, Inc.Russ August & Kabat · lead counsel
- π plaintiffRedstone Logics LLC v. Apple, Inc.Russ August & Kabat · lead counsel
- π plaintiffRedstone Logics LLC v. MediaTek, Inc. et al.Russ August & Kabat · counsel
- Δ defendantRedstone Logics LLC v. MediaTek, Inc. et al.Russ August & Kabat · attorney
- π plaintiffRedstone Logics LLC v. NXP Semiconductors, N.V. et al.Russ August & Kabat · lead counsel
- π plaintiffRedstone Logics LLC v. Qualcomm Incorporated et al.Russ August & Kabat · counsel
- Δ defendantRegeneron Pharmaceuticals Inc. v. Unnamed DefendantRuss August & Kabat · lead 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
- π plaintiffTQP Development, LLC v. Adobe Systems, Inc.Russ August & Kabat · lead counsel
- π plaintiffTQP Development, LLC v. Avis Budget Group, Inc.Russ August & Kabat · lead counsel
- π plaintiffTQP Development, LLC v. Callidus Software, Inc.Russ August & Kabat · Lead Counsel
- π plaintiffTQP Development, LLC v. Chegg Inc.Russ August & Kabat · Lead Counsel
- π plaintiffTQP Development, LLC v. Chrysler Group LLCRuss August & Kabat · lead counsel
- π plaintiffTQP Development, LLC v. Intuit Inc.Susman Godfrey · lead counsel
- π plaintiffTQP Development, LLC v. MLB Advanced Media, L.P.Russ August & Kabat · lead counsel
- π plaintiffTrinity Info Media, LLC v. Raya App, Inc.Russ August & Kabat · lead counsel
- Δ defendantUnified Patents PTAB Data v. Headwater Research LLCRuss August & Kabat · Lead Counsel
- Δ defendantUntitled caseRuss August & Kabat · lead counsel
- π plaintiffUntitled caseRuss August & Kabat · trial counsel
- π plaintiffUntitled caseRuss August & Kabat · Lead Counsel
- π plaintiffUntitled caseRuss August & Kabat · lead counsel
- π plaintiffUntitled caseRuss August & Kabat · Lead Counsel
- π plaintiffUntitled caseRuss August & Kabat · lead counsel
- π plaintiffUntitled caseRuss August & Kabat · counsel
- Δ defendantUntitled caseRuss August & Kabat · lead counsel
- π plaintiffUntitled caseRuss August & Kabat · Lead Counsel
- π plaintiffUntitled caseRuss August & Kabat · lead counsel
- π plaintiffUntitled caseRuss August & Kabat · lead counsel
- π plaintiffUntitled caseRuss August & Kabat · lead counsel
- π plaintiffUntitled caseRuss August & Kabat · Lead Counsel
- π plaintiffUntitled caseRuss August & Kabat · lead counsel
- π plaintiffUntitled caseRuss August & Kabat · lead counsel
- π plaintiffUntitled caseRuss August & Kabat · lead counsel
- π plaintiffVirtaMove Corp. v. Hewlett Packard EnterpriseRuss August & Kabat · lead counsel
- π plaintiffVirtamove Corp. v. International Business Machines Corp. et al.Russ August & Kabat · Counsel
- π plaintiffVirtaMove Corp. v. International Business Machines CorporationRuss August & Kabat · Lead Counsel
- π plaintiffVirtamove Corp. v. Microsoft Corp.Russ August & Kabat · Counsel
- π plaintiffVirtaMove Corp. v. Microsoft CorporationRuss August & Kabat · lead counsel
- π plaintiffVirtamove Corp. v. Oracle Corp.Russ August & Kabat · Counsel
- π plaintiffVirtaMove Corp. v. Oracle CorporationRuss August & Kabat · lead counsel
- π plaintiffVirtaMove, Corp. v. Amazon.com, Inc. et al.Russ August & Kabat · additional 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 · Lead Counsel
- π plaintiffWilus Institute of Standards and Technology Inc. v. Samsung Electronics Co., LTD. et al.Russ August & Kabat · lead counsel
- Δ defendantYahoo! Inc. v. AlmondNet, Inc.Russ August & Kabat · of counsel