Christine Au-Yeung is a partner in the San Francisco and Palo Alto offices of Wilson Sonsini Goodrich & Rosati, where she specializes in 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 and Partners’ USA and Global guides, as well as World Trademark Review’s WTR 1000. She focuses 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. Alyssa advises on trademark disputes, domain name disputes, contests and sweepstakes, advertising review, right of publicity, social media issues, Telephone Consumer Protection Act (TCPA) compliance (i.e., the rules surrounding marketing texts and calls), FTC compliance and investigations, copyright, IP diligence, and associated commercial contracts. She works with software companies, biotech start-ups, cosmetics companies, fashion companies, life sciences and digital health companies, agro-tech companies, consumer products, non-profits, and game developers, among others. She advises founders, CEOs, GCs, IP specialists, and chief marketing officers on the critical issues surrounding brand creation, protection, and strategy.