Sumner Intellectual Property Lawyers

David Marcus has spent nearly three decades representing entrepreneurs and business owners in complex cases involving everything from the breach of an asset purchase agreement, to the infringement of a patent and copyright, to an allegedly defective product, to the improper management of a brokerage account. After getting his start at a large law firm, Mr. Marcus went on to become a partner at a boutique litigation firm before founding his own firm about a decade into his practice. Mr. Marcus has tried numerous cases to jury verdict in state and federal courts, and also handled arbitrations administered...

SEAN T. BRADLEY is registered to practice before the United States Patent and Trademark Office, and is admitted to the Kansas Bar, the Missouri Bar, and the U.S. Court of Appeals for the Eighth and Tenth Circuits. He has served two terms as Chair of the Patent, Trademark and Copyright Committee of the Kansas City Metropolitan Bar Association. Mr. Bradley’s practice includes patent and trademark searches, preparing and prosecuting patent applications, both in the US and internationally, and preparing and prosecuting trademark and copyright applications for registration. Additional services include preparing confidentiality or non-disclosure agreements, assignments, and license agreements,...

Jean Maneke has been practicing media, publishing and entertainment law for more than 25 years. In addition to her work for individual clients, she serves as counsel to the Missouri Press Association.

Ms. Maneke has been “AV” rated by Martindale-Hubbell, a peer-review lawyer-rating organization for many years. The “AV” rating is the highest rating a lawyer can receive from this organization. She also has been recognized since 2006 as being among the Best Lawyers in America in the practice areas of First Amendment Law and Litigation-First Amendment.

Formerly a journalist, she worked as a reporter for numerous newspapers and...