Robert L. Vigil
Education
Ph.D., economics, University of Maryland; B.A., economics, Pepperdine University
Summary of Experience
Dr. Vigil is an economic damages expert who applies economics, finance, and statistics to complex commercial and intellectual property (IP) litigation. He has given trial, deposition, and arbitration testimony on damages in patent infringement, trade secret misappropriation, trademark infringement, breach of contract, and false advertising (Lanham Act) matters in US federal courts, before the US International Trade Commission, and in domestic and international arbitrations.
He has quantified reasonable royalties, lost profits, price erosion, unjust enrichment, disgorgement, head-start damages, prejudgment interest, design patent profits, and FRAND royalties for standard essential patents. He has also measured plaintiffs’ losses and defendants’ gains from tortious interference and breaches of contract, non-compete and confidentiality agreements, and fiduciary duty.
Beyond damages, Dr. Vigil has evaluated:
- Commercial success in Hatch-Waxman litigation
- Irreparable harm and causal nexus for injunctions
- Domestic industry and bonding in Section 337 investigations
- The design and reliability of conjoint and other consumer surveys
His litigation and IP valuation work spans these industries:
- Smartphones and consumer electronics
- Telecommunications (4G, 5G, and LTE)
- Semiconductors
- Software and e-commerce
- Pharmaceuticals
- Life sciences tools
- Consumer products
- Medical devices such as surgical staplers, heart valves, and orthopedic implants
He has written on patent damages, lost profits, injunctive relief, marketing, and related topics for publications including the Texas Intellectual Property Law Journal, les Nouvelles, and the Journal of Marketing Research. He has also spoken widely on IP damages and valuation. Dr. Vigil is a Certified Licensing Professional and a member of the American Economic Association, the American Marketing Association, and the Licensing Executives Society. He taught microeconomics and econometrics at the University of Maryland.
Provided Expert Testimony
- In re Certain Ground Fault Circuit Interrupters and Products Containing Same
- Mobile Telecommunications Technologies LLC v. Samsung Telecommunications America LLC
- NeWire Inc. v. Southwire Company
- ProSlide Technology Inc. v. WhiteWater West Industries Ltd.
- Uniloc USA, Inc., Uniloc Luxembourg S.A., Uniloc 2017 LLC, v. Samsung Electronics America, Inc., Samsung Electronics Co., Ltd.
Additional Cases
- Apple v. Samsung Injunction Ruling (July 2014)
- Apple v. Samsung Trial (May 2014)
- Cogent Systems, Inc. v. Northrop Grumman Corporation
- Comcast IP Holdings I LLC v. Sprint Communications Co. LP et al.
- ContentGuard Holdings Inc. v. Google Inc.
- E.I. du Pont de Nemours & Co. v. Kolon Industries Inc.
- Elmagin Capital, LLC v. Chao Chen, Karl Petty, Entergrid LLC, and Entergrid Fund I LLC
- Honeywell International, Inc. v. Air Products and Chemicals
- Maxell, Ltd. v. ZTE (USA) Inc.
- OpenAI, Inc. v. Open Artificial Intelligence, Inc., et al. (Steckel)
- Simon Property Group, Inc., et al. v. Taubman Centers, Inc., et al.
- SimpleAir v. Google, et al.
- St. Clair Intellectual Property Consultants Inc. v. Toshiba Corp. et al.
- The Vineyard House, LLC v. Constellation Brands U.S. Operations, Inc., and Constellation Brands U.S. Operations, Inc. v. The Vineyard House, LLC
- Wisconsin Alumni Research Foundation v. Apple
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Assessing Damages in Trade Secret Litigation
Corporate Disputes / Financier Worldwide, 2026
2026Sikellis R, Vigil R, Serwin K, Irwin C, McSorley R
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Lost Profits Damages: Principles, Methods, and Applications (second edition)
Valuation Products and Services, LLC, 2022
2022Kinrich J, Harry E
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Determining the Price for One When All You Have Is the Price for Many
NACVA QuickRead, June 29, 2022
2022Vigil R, Zhang X
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Prejudgment Interest: W.D. Texas Got It Right In The VLSI v. Intel Patent Suit
les Nouvelles, 2022
2022 -
Preliminary Injunctive Relief in Patent Cases: Repairing Irreparable Harm
Texas Intellectual Property Law Journal, Vol. 31, pp. 63–130, 2022
2022 -
Apportioning Value In Patent Portfolio License And Sale Agreements
les Nouvelles, 2020
2020Vigil R, Zhang X
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Patent damages in US courts: overview of current state of play
IAM Yearbook 2019, October 2018
2018 -
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Assessing Commercial Success at the U.S. Patent Trial and Appeal Board
International In-house Counsel Journal, Vol. 8, No. 32,
2015
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October 1, 2026
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June 1, 2026
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August 7, 2025
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May 30, 2025
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June 11, 2024
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November 30, 2023
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July 18, 2023