Justin C. Griffin is Co-Managing Partner of Quinn Emanuel’s Los Angeles Office. His practice focuses on complex commercial litigation in U.S. federal courts, state courts, and domestic and international arbitration. He has litigated cases in nearly every major practice area of the firm and has extensive experience in disputes involving antitrust, trade secret and employee mobility, patent, fraud and breach of contract, class action, and product liability issues.
Mr. Griffin represents both plaintiffs and defendants and has litigated, and tried, cases in state and federal courts throughout the country before both judges and juries. Whether representing a Fortune 500 company, an investment fund, or an individual, his practice focuses on solving his clients’ most difficult legal challenges.
Mr. Griffin has been named by Lawdragon as one of the country’s Leading Plaintiff Financial Lawyers every year since 2020 and was recognized as a Southern California “Rising Star” by Super Lawyers Magazine multiple times. Before law school, Justin played professional baseball in the Cleveland Guardians’ (formerly Indians) organization.
- Aon
- FitzWalter Capital Partners
- Hyundai Motor America
- Kia America, Inc.
- Match.com
- Twitter, Inc.
- Vitol, Inc.
- Defending Vitol in a dispute brought by the California Attorney General’s office, and a follow-on class action brought by a group of private plaintiffs, alleging antitrust violations under the Cartwright Act.
- Defending Hyundai and Kia in a series of cases brought by cities alleging public nuisance based on the purported impact to their municipalities of a social media driven wave of thefts of certain vehicle models.
- Defending an Aon entity in a putative nationwide class action asserting claims under state deceptive practice statues for alleged deception of consumers regarding the bases for pet health insurance premium increases.
- Defending Twitter in a number of copyright matters.
- Represented tens of thousands of DoorDash drivers in arbitrations against DoorDash relating to the company’s misclassification of drivers as independent contractors. The parties reached a settlement.
- Represented tens of thousands of Amazon Alexa owners and users in arbitrations and both federal and state court litigation against Amazon relating to the company’s practice of recording the voices of Alexa users without consent. The parties reached a settlement.
- Defended Match.com, and its affiliated sites, in a mass arbitration campaign relating to alleged violation of the Illinois Biometric Information Privacy Act.
- Represented Qualcomm in the Central District of California in a patent infringement dispute involving semiconductor memory devices, specifically sense amplifiers. Obtained a dismissal with prejudice after claim construction.
- Retained by eBay in a long-running dispute with craigslist, arising out of eBay's 2004 acquisition of a 28.4% equity interest in craigslist. Months after we appeared in the case, the parties reached a confidential settlement, under which craigslist repurchased all of eBay’s equity and all litigation between the parties was dismissed.
- Represented Nestlé USA, Inc. and Nestlé Dreyer’s Ice Cream Company in an antitrust action involving an alleged conspiracy to exclude competition in a claimed market for “better for you” ice cream. Obtained summary judgment.
- Represented Pfizer in litigations involving several of its prescription medications.
- Represented DIRECTV in an antitrust action brought by a former retailer under the Cartwright Act. Obtained summary judgment.
- Represented Qualcomm in a patent infringement action involving RF signal processing technology. Obtained a stipulated judgment of noninfringement after claim construction.
- Represented DIRECTV as the claimant in multiple arbitrations against former retailers involving fraud and breach of contract claims. Each arbitration resulted in a multi-million dollar verdict in DIRECTV’s favor.
- Represented Penn National Gaming in a section 1983 civil rights lawsuit against a municipality in Ohio. Obtained very favorable 8 figure settlement for Penn National Gaming on eve of preliminary injunction hearing.
- Represented a global telecommunications company in a multi-billion dollar worldwide patent and contract dispute concerning intellectual property in mobile telephones. The related matters included actions in Delaware, Wisconsin, Texas, and the International Trade Commission. The ITC action resulted in a final determination of no section 337 violation in favor of our client. The remaining matters were settled globally.
- Represented Epson in a case alleging patent infringement by Epson printers. The case, which was venued in the Eastern District of Texas, settled shortly after we filed our claim construction brief.
- Stanford Law School
(J.D., 2004) - Princeton University, School of Public and International Affairs (formerly the Woodrow Wilson School)
(A.B., 1998)
- The State Bar of California
- United States Court of Appeals:
- Federal Circuit
- United States District Courts:
- Central District of California
- Northern District of California
- Southern District of California
- Selected to Lawdragon 500 Leading Litigators in America – Complex Commercial Litigation, 2024, 2025
- Selected to the Lawdragon 500 Leading Plaintiff Lawyers guide (2020 - 2024)
- Selected as a "Southern California Rising Star" by Super Lawyers Magazine (2014-2016)