California

Litigation boutique Willenken boasts a compact but experienced partnership handling complex commercial disputes, class actions, appeals, intellectual property matters and product liability litigation. The Los Angeles firm is particularly noted for trial-ready defense work, often entering matters at a critical stage and quickly developing focused strategies.

Founding partner Paul Loh is a prominent courtroom advocate with more than three decades of experience and over 120 jury trials, bench trials and arbitrations. Managing partner Kenneth Trujillo-Jamison is recognized for complex commercial, appellate and social media disputes, while Eileen Ahern stands out in consumer class actions and product-labeling litigation. Jason Wilson adds notable appellate and high-stakes trial capabilities.

Ahern delivered an important result for Spectrum Brands in Christine Garza v. Spectrum Brands Pet LLC. The putative consumer class action challenged front-label “made with” ingredient claims under California consumer-protection law. Willenken secured dismissal with prejudice on a single motion, eliminating potential class-wide exposure and producing a useful defense-side ruling on the reasonable-consumer standard and consideration of back-label disclosures.

Wilson demonstrated the firm’s appellate strength in In re the Marriage of Sridhar Vembu and Pramila Srinivasan (In re Tony G. Thomas). Acting for non-party Tony G. Thomas, Willenken challenged a receivership order affecting his assets and defeated a demand for a $1.7 billion undertaking. The court instead set a nominal $1,000 bond, preserving the status quo while the appeal proceeded.

These results illustrate Willenken’s ability to combine first-chair trial experience with sophisticated motion and appellate practice. Its strongest partners are effective at reducing substantial exposure early, reshaping difficult cases and delivering decisive relief in procedurally complex disputes.



Updated October 2026