Christine Au-Yeung is a partner in the San Francisco and Palo Alto offices of Wilson Sonsini Goodrich & Rosati, where she focuses on trademark, copyright, and advertising law. She counsels clients on all aspects of brand protection in the U.S. and throughout the world, including clearance and selection of trademarks, prosecution of trademark applications, licensing, and the resolution of trademark infringement and domain name disputes. She also advises clients on advertising issues, including TCPA compliance related to marketing calls and texts, as well as strategies on promotions such as sweepstakes and contests.

Aaron heads the firm's trademark and advertising practice, focusing on the areas of trademark, advertising, unfair competition, copyright, retail, rights of publicity, social media, and consumer law.

Brandon Leahy is senior counsel in the San Francisco office of Wilson Sonsini Goodrich & Rosati, where he practices trademark, copyright, and advertising law. He advises clients on all aspects of brand protection and enforcement in the U.S. and internationally, including clearance and selection of trademarks, prosecution of trademark applications, and licensing and transactions. He also represents clients in federal court litigation, in disputes before the Trademark Trial and Appeal Board, and in arbitration proceedings involving domain names.

Alyssa Worsham is a member of the firm’s trademark and advertising team, which has been recognized in Chambers USA and Chambers Global, as well as World Trademark Review’s WTR 1000. Alyssa focuses her practice on global strategic advice, litigation strategy, and transactional guidance for clients’ trademarks, branding, and advertising in marketplaces where commercial and geographic lines are increasingly blurring. She helps clients assess the risk in selecting new business and product names, and works with them to build, exploit, and protect these names creatively and strategically.