John Gray, co-chair of Perkins Coie’s Trade Secret practice, focuses his practice on complex business and intellectual property disputes. John has special emphasis in trade secret litigation and counseling, serving as counsel for both plaintiffs and defendants on multiple high-risk and prominent trade secret litigations, as well as regularly advising clients on managing trade secret risk. John also has significant experience representing both large and small companies in disputes over trademark enforcement, patent infringement, licensing, copyright infringement, employment and noncompetition agreements, and an array of contract and business tort issues.

James Sanders, co-chair of Perkins Coie’s Trade Secret practice, focuses on employment law. James’s practice covers all types of legal disputes that arise between employees and employers, including trade secret, employment discrimination, whistleblower, non-competition, employee raiding, wage-and-hour and employment class action disputes. Throughout his career, James has obtained dozens of defense verdicts, judgments and arbitration awards on behalf of the firm’s clients. An experienced first-chair trial attorney, he is frequently engaged to take over as a matter approaches trial.

Susan Foster, focuses her practice on antitrust and unfair competition counseling and litigation as well as intellectual property, advertising, and other complex business and financial litigation. She has represented plaintiffs and defendants in numerous high risk trade secret and non-compete disputes involving competitors and potential competitors. In her counseling practice Susan assists clients with a full range of antitrust, marketing, and trade secret issues including distribution counseling, advertising and promotion issues, strategic alliances, supplier concerns, licensing, and Hart-Scott-Rodino premerger notification matters. Her clients encompass businesses from a range of high-technology and other industries, including aerospace and computer software.


Benjamin Calleros serves clients involved in complex commercial disputes, including high-stakes arbitration. He has also assisted clients in bankruptcy, environmental, employment, real estate and corporate matters, striving always to provide exemplary service and obtain results for the client through diligence, efficiency and responsiveness. Ben has particular experience in motion writing, drafting pretrial, discovery, evidentiary and summary judgment motions on behalf of clients in both state and federal court.

Margo CasselmanMargo Casselman, based in Phoenix, practices complex commercial litigation and has experience in intellectual property and trade secrets disputes. Before joining Perkins Coie, she clerked for the Honorable David G. Campbell of the U.S. District Court for the District of Arizona and the Honorable Mary H. Murguia of the U.S. Court of Appeals for the Ninth Circuit. Margo earned her B.A. in Business, summa cum laude from Arizona State University in 2014.

Emily CooperEmily Cooper represents clients in trade secret litigation and other business litigation matters across a range of industries, including technology, software and retail. She has experience with a variety of commercial litigation issues, including pleadings and motion practice at both the state and federal court level, managing complex e-discovery and negotiation.

Jacob Dini focuses his practice on intellectual property matters involving trademarks, trade dress, copyrights, and trade secrets. Jacob has experience litigating trade secrets matters in both federal court and Washington state court, including representing clients in the gaming and retail industries.


Janet Howe Janet Howe represents clients in trade secret, environmental, and other litigation disputes across a range of industries. Before joining Perkins Coie, Janet clerked for the Hon. Ann Timmer of the Arizona Supreme Court and for the Hon. David G. Campbell of the U.S. District Court for the District of Arizona.


Christian Marcelo is experienced in intellectual property matters involving trade secrets, trademarks, copyrights, trade dress and domain name litigation. Christian regularly litigates trade secret, trademark, trade dress and copyright infringement matters for clients in the technology, retail and gaming industries. He also has broad experience managing and assisting with trademark and copyright enforcement programs, including a successful practice of litigating domain name claims before the Uniform Domain-Name Dispute-Resolution Policy (UDRP) arbitration panel.

Austin Yost focuses on complex commercial, constitutional, and appellate litigation. His experience includes trade secrets issues. Austin represents clients in state and federal courts, including in disputes over the constitutionality of state laws and policies, commercial real estate transactions, and other business deals. Before joining Perkins Coie, he served as a law clerk for the Honorable John Pelander of the Arizona Supreme Court. His professional experience includes working at Goldman Sachs for three years prior to law school.

Mallory WebsterMallory Webster is a litigator who handles high-stakes commercial and consumer disputes for Fortune 500 companies and startups alike. Mallory represents clients in a broad range of disputes—consumer protection actions, contractual disputes, trade secret litigation, and private arbitration. She has deep experience combatting “mass arbitration” strategies by consumers and plaintiffs’ attorneys.