Welcome to Crossan IP Law, LLC.
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 in the Chicago Loop, at Three First National Plaza. Please call or write to discuss how we may best work together to benefit your business.