Joseph R. Ashby

Co-Founding Partner

Contact Information
(323) 318-7771, ext. 102
1055 West Seventh Street, 33rd Floor
Los Angeles, California 90017


J.D., University of Michigan Law School, 2006
• Associate Editor, Michigan Law Review, 2005–2006
Regional Championship team: Philip C. Jessup International         
• Law Moot Court Competition, 2004, 2006
B.A. (Economics and Sociology, summa cum laude), Arizona State University, 2002


State Bar of California
U.S. Appellate Courts:
• Ninth Circuit
U.S. District Courts: 
• Central District of California
• Northern District of California
• Southern District of California
• Eastern District of Michigan
• Western District of Michigan


Joseph R. Ashby is a co-founding partner of Sergenian Ashby LLP. His practice concentrates in the areas of class actions, trademarks, trade secrets, partnership and startup disputes, and general commercial litigation. In addition, he has extensive experience in appellate matters and patent law. He has represented numerous Fortune 500 companies in state and federal courts throughout the country.

Prior to co-founding Sergenian Ashby LLP, Joseph was a Partner at Pierce Sergenian LLP. Prior to that, he was Of Counsel at Quinn Emanuel Urquhart & Sullivan LLP. Prior to that he was a law clerk for the Honorable Robert Holmes Bell in the U.S. District Court for the Western District of Michigan.

Select Representative Matters

Represented a multinational insurance company in a lawsuit asserting claims under California Bus. & Prof. Code § 17200 alleging illegal, fraudulent, and unfair business practices. The court dismissed the lawsuit in entirety at the pleading stage.
Represented a major packaged food company against antitrust claims alleging it had conspired with grocery stores to exclude competition in the claimed market for “better for you” ice cream. The court granted summary judgment in favor of the packaged food company on the plaintiff’s antitrust claim.
Represented a leading printer manufacturer in a nationwide class action alleging that it misrepresented, or failed to disclose, the rate at which certain inkjet printers consumed ink.  The court granted summary judgment in favor of the printer manufacturer on the claim that it failed to disclose ink consumption information, and denied class certification on the affirmative misrepresentation claims.
Represented a Los Angeles-based investment management firm in a six-week trial against an executive and his colleagues who, the jury found, misappropriated the firm’s trade secrets and breached their fiduciary duties to the company. The case settled before the court assessed damages on the firm’s trade secrets claim.
Represented a prominent retailer in a class action alleging it violated the Labor Code, by failing to provide meal and rest breaks, and failing to pay overtime. The court denied class certification in entirety.
Represented the liquidating trust established following the bankruptcy of a nationwide mortgage loan originator and servicer in on-going litigation against correspondent lenders for the sale of defective mortgage loans.
Represented an internet startup company in an ongoing trade-secrets dispute against a large online ticket exchange corporation and its employees.
Currently representing a plaintiff in an action against his former partner and certain transferee entities over the proceeds of the partnership’s real estate investments.

Blog Posts by Joseph R. Ashby


1055 West Seventh Street, 33rd Floor
Los Angeles, California 90017