E. Danielle Williams

E. Danielle Williams is a high-stakes patent litigator who defends operating companies in complex intellectual property disputes. Her practice is concentrated in high-technology sectors, including financial services, semiconductors, telecommunications, software, and mobile applications. Leveraging her M.B.A., she has developed a particular focus on the damages aspects of patent litigation and is often brought in to develop damages strategy. Her work primarily involves representing publicly traded and privately held corporate defendants against claims of patent infringement. The single tracked case, where she served as lead counsel for the defendant Petco, aligns with this focus.

In February 2026, Ms. Williams joined King & Spalding as a partner and co-leader of the firm's Intellectual Property group, moving with a nine-partner team from Winston & Strawn. At the time of her appearance in the Monticello Enterprises LLC v. Petco Animals Supply Stores Inc matter, she was a partner at Winston & Strawn, where she had served as the Charlotte office's managing partner and co-chair of the firm's global IP practice. Her prior experience includes partnership roles in the patent litigation groups at Fish & Richardson and Kilpatrick Townsend.

While the tracked case list is limited, Ms. Williams's career includes other notable matters. Her biography highlights a recent, successful antitrust trial representing 23XI Racing and Front Row Motorsports against NASCAR, which earned her "Am Law Litigator of the Week" recognition. There is no specific, well-sourced information regarding her direct experience in IPR or other PTAB proceedings.

According to a 2014 Lawdragon profile, Ms. Williams received her J.D. and M.B.A. from Wake Forest University in 1996 and her B.A. from the University of North Carolina at Chapel Hill in 1992.