Quinn Emanuel Urquhart & Sullivan

Quinn Emanuel Urquhart & Sullivan is top tier in California for copyright, patent and trademark litigation. The litigation boutique is well known for its trial-tested attorneys who often handle novel or high-stakes cases. The firm is often engaged in matters in district court, appeals, ITC cases and office proceedings.

Key patent litigators at the firm include Fred Lorig, Victoria Maroulis, Sean Pak, William Price, Claude Stern, Robert Stone, Charles Verhoeven and Michael Zeller. Verhoeven is one of the firm’s most prominent trial lawyers and is currently serving as co-chair of the national patent litigation practice group.

In the trademark and copyright space, Margaret Caruso, Bruce Van Dalsem and Claude Stern are some of the firm’s experienced practitioners.

In 2021, the firm was shortlisted by Managing IP for the Patent Contentious Firm of the Year in the West award.

The firm was active in a patent licensing dispute for Samsung against Huawei involving 3G and 4G technology. The case settled and all pending actions were dismissed recently.

The firm was also engaged in a matter for Qualcomm against Apple spanning multiple jurisdictions and venues. The high-profile patent dispute, which involved a Southern District of California trial and actions before the ITC, recently settled.

Additional patent clients of the firm include Samsung and Sony.

The firm’s trademark practice was active in infringement disputes, matters with Lanham Act claims and cancellations. Recent clients include AM General, Boy Scouts of America and Gucci.

In the copyright area, the firm recently represented Aliplay in a proposed class action involving copyright infringement claims.