Xenophon Paparrigopoulos

Lee B. Balefsky is senior counsel and former head of the Mass Tort Department in which he was involved in lawsuits dealing with a wide range of products and toxic substances, from pharmaceuticals to defective medical devices, from asbestos to denture creams containing zinc. Balefsky was a member of the Plaintiffs Steering Committee involved in all transvaginal mesh cases nationwide and he served as liason counsel in the Philadelphia Mass Tort Pelvic Mesh program. He had great success in other...

Harry Chamberlain is a Shareholder of Buchalter, an Am Law 150 firm with a dozen U.S. offices. For over 40 years, he has served as trial and appellate counsel on behalf of Fortune 500 companies, and a variety of public and private sector clients in complex litigation matters. He is certified as an Appellate Specialist by the California State Bar Board of Legal Specialization, arguing hundreds of appeals, including numerous cases before the California Supreme Court and the highest state and fe...

Erika Harmon Arner is a nationally recognized leader in trial practice before the Patent Trial and Appeal Board (PTAB) and related appeals to the U.S. Court of Appeals for the Federal Circuit. She consistently ranks as one of the top three female attorneys appearing in PTAB trials and was named a PTAB Litigator of the Year by Managing Intellectual Property. She has argued and won a number of landmark cases at the PTAB and Federal Circuit for both patent challengers and patent owners. Erika&rs...

BACKGROUND Tim Boller's practice focuses on electrical patent prosecution and intellectual property litigation. He graduated from the University of Kansas with a B.S. in Electrical Engineering (1986) and received a J.D. from Georgetown University Law Center (1994). EXPERIENCE After receiving his J.D., Tim was a judicial clerk to U.S. District Court Judge J. Thomas Marten and was a research attorney for the Kansas Court of Appeals. He has extensive research and legislative assistant experience...

Robert M. Einhorn serves as a co-managing partner at Zarco Einhorn Salkowski PA, located in Miami, Florida. With over thirty years devoted to legal practice, Robert concentrates on advocating for franchisees in litigation both within the United States and internationally. His representation spans major franchise systems across the hotel, restaurant, and service industries. Robert earned his Bachelor of Business Administration from the University of Wisconsin-Madison, majoring in accounting an...

Matthew J. Petersen is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Matthew J., who practices law in Chicago, Illinois, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Matthew J. is held by other top lawyers in the same geographic and legal practice area.

Katherine A. Beck is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Katherine A., who practices law in Phoenix, Arizona, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Katherine A. is held by other top lawyers in the same geographic and legal practice area.

Jon and his firm have handled every kind of injury case you can imagine: auto and motorcycle collisions, product liability, civil litigation, nursing home neglect, bicycle and pedestrian accidents, and animal attacks.

Gary L. Simpler is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management, Labor Law - Management and Litigation - Labor and Employment. Gary L., who practices law in Baltimore, Maryland, has been recognized since 2007. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Gary L. is held by other top lawyers in the same geographic and legal practice area.

Kevin J. Culligan is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property and Litigation - Patent. Kevin J., who practices law in New York, New York, has been recognized since 2005. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kevin J. is held by other top lawyers in the same geographic and legal practice area.