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Claire  C.  Weglarz


Claire Weglarz is a first-chair trial attorney who represents public and private entities in high-risk litigation nationwide. She represents clients in a broad range of industries from energy and chemicals to manufacturing, automotive, and consumer goods. She has extensive experience in cases involving products liability, premises liability, environmental claims, and toxic exposures to asbestos, talc, benzene, and other various chemicals. Clients also look to Claire for help handling a variety of other disputes and litigation related to unfair business practices, product labeling, and employment issues.

Claire excels at effectively communicating complex issues to judges and juries to be both comprehensible and compelling. With a background in biology, Claire specializes in developing cutting-edge litigation strategies involving the advancement of technical, scientific, and medical defenses. As a registered patent and trademark attorney, she has a unique perspective and foresight into issues involving the design, manufacture, and intended use of products. 

Always results-oriented, Claire prides herself on providing legal services that are cost-effective and predictable. She keeps her clients informed of ongoing case developments and strategies, while also seeking to prevent future litigation. Claire serves her clients in local, national, and trial counsel capacities.



  • University of San Diego School of Law  (J.D., 2004)
    • Recipient, American Jurisprudence Award in Criminal Procedure
    • Institute on International and Comparative Law, London, England (2002)
  • Loyola Marymount University  (B.S., 2000)

Bar Admissions

  • California
  • United States Patent and Trademark Office


  • U.S. District Court for the Central District of California
  • U.S. District Court for the Eastern District of California
  • U.S. District Court for the Northern District of California
  • U.S. District Court for the Southern District of California

Professional Affiliations

  • Trial Attorneys of America
  • Los Angeles County Bar Association
  • DRI
  • Central City Association
  • State Bar of California
  • American Bar Association


  • Southern California Super Lawyers, Rising Star (2009-2011)



  • "The Perspective of Female Litigators in Cosmetic Talc Cases," DRI Talc Litigation Seminar, Washington, DC (September 2019)
  • “Asbestos Openings by a Plaintiff and Two Defense Lawyers,” Defense Asbestos Litigation Seminar, Orlando, Florida (June 2017)
  • "Defense Exhibit 1: ;): Emoticons in Court,"  Trial Attorneys of America Annual Meeting, Chicago, Illinois (June 2016)
  • "Social Media Discovery, Collection & Admissibility," Trial Attorneys of America Annual Meeting, Chicago, Illinois (June 2014)
  • "Spoliation of Evidence: When to Cry Over Spilled Milk," Trial Attorneys of America Annual Meeting, Chicago, Illinois (June 2013)