David Heisey is a partner in the Intellectual Property Practice Group in Sheppard Mullin's Del Mar Heights office.

Mr. Koropp is an experienced trial attorney who has represented clients in some of their most complex and significant accounting/auditor liability, commercial, class action, antitrust, real estate and patent litigation matters.

David Wang is an Intellectual Property partner in Mayer Brown's Palo Alto office. Recognized as a SuperLawyer in intellectual property litigation by SuperLawyers in 2010, David focuses his practice on patent infringement litigation.

David Jordan is a Principal in Fish & Richardson’s Washington, D.C. office. Mr. Jordan’s law practice emphasizes client counseling in the areas of patent infringement and validity opinions, patent due diligence.

David Ervin is a partner in the firm's Washington, D.C. office and a member of the Advertising & Product Risk Management (APRM) and Intellectual Property groups. He focuses on the intersection of advertising and intellectual property law.

David Fleischer is a litigation partner in the New York office of Haynes and Boone. He has more than 30 years of experience litigating cases across multiple industries and areas of law.

Dave has decades of experience assisting clients in establishing, maintaining, and enforcing their intellectual property portfolios.

David Wille has a broad intellectual property and technology practice. While the majority of his practice focuses on intellectual property litigation and appellate work (including patent, trade secret, copyright and trademark litigation.

David Harper is a partner, trial lawyer and the co-chair of the firm's Litigation Department. As co-chair of the department, he has responsibility to oversee all of the firm's litigators, particularly the firm's IP litigators.