John R. Crossan

Crossan Intellectual Property Law, LLC

New York, New York 10001


Antitrust, Copyright, Employment, Intellectual Property, Patent, Trade Secrets, Trademark, Unfair Competition

Enforcing your rights; Protecting your innovations

For over 35 years now John R. Crossan has helped businesses, institutions, and individuals thrive and compete successfully with services provided by his specialized practice of Intellectual Property Law - shortened as IP Law. John R. Crossan has, with his clients, obtained and enforced or protected against patents, trademarks, copyrights, and trade secrets, and John R. Crossan has helped clients understand and use employment covenants and IP-related antitrust law. He has done this through litigation in Federal and state courts and other dispute resolution forums, here and abroad, through preparing and prosecuting applications, by negotiations and licensing, and through counseling of clients of all sizes.

John R. Crossan's career has progressed through practices in specialty boutique Chicago IP law firms from 1973 to 1998, and then in the IP section of a national financial services law firm in Chicago from 1998 to 2009. John R. Crossan is pleased now to offer current, returning, and new clients to personalized, valuable, cost-efficient IP Law services in his own IP Law Office on Chicago’s Magnificant Mile, at 875 N. Michigan Avenue. Please call or write to discuss how we may best work together to benefit your business.

Mission Statement

John R. Crossan has, throughout his professional career, provided each client the highest level of specialty legal services, cost-effectively tailored to their business needs and objectives. John R. Crossan draws on his extensive experience to offer creative, knowledgeable skills for understanding and resolving business and competitive problems and for taking best advantage of business and competitive opportunities, using IP Law principles and tools in each case or situation. Each client's IP needs and objectives are foremost in each instance, and John R. Crossan will recognize or formulate those by working together with each client, always with a view to the facts, to the law, and to best policies and practices.

875 North Michigan Avenue, #3216
Chicago, IL 60611

P: 312-498-2568
F: 312-264-0770
E: [email protected]