Best Lawyers in Illinois, United States for Intellectual Property Law

Floyd Mandell is the national co-chair and founder of the firm's Intellectual Property department. He has represented some of the world’s most recognizable companies in intellectual property litigation. Few other lawyers have handled as many high-profile cases over the past 20 years involving copyrights, trademarks, trade secrets, trade dress, false advertising and defamation. He has been lead counsel in more than 40 published decisions, many involving novel or cutting-edge issues. On m...

Sorinel Cimpoes is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law. Sorinel, who practices law in Chicago, Illinois, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sorinel is held by other top lawyers in the same geographic and legal practice area.

James J. Lukas, Jr. is Co-Chair of the Chicago Intellectual Property & Technology Practice. He focuses his practice on intellectual property litigation with a particular emphasis on patent litigation and related client counseling. He has experience with complex patent litigation cases in federal district courts throughout the country, including both enforcing patent rights and defending against charges of infringement on behalf of clients. He has first-chaired trials and claim constructio...

Michael Hartmann is active in all phases of intellectual property law with an emphasis in intellectual property litigation and technology protection and transfer in the United States and internationally. He has acted as lead trial counsel in jury and bench trials, International Trade Commission investigations, and related pre-trial and appellate proceedings in diverse technical fields. These include software, telecommunications, machine vision and semiconductor manufacturing, oil field drilli...

Bradley provides diverse IP protection to large companies and startups by strategically building comprehensive global IP portfolios to monetize and protect products and methods using utility patents, design patents, trademarks, and copyrights. He also helps his clients with litigation financing, patent litigation, licensing, IP incentive programs, and general counseling on IP matters. What do you focus on? My practice focuses on helping clients create monetizable IP using customized patent mi...

Edward A. Mas II is a Shareholder at McAndrews, and has been described by his clients and peers as a “terrifically savvy litigator” who “routinely secures the best position for his clients.” As an advocate, he is “experienced, smart, aggressive, and effective.” For more than twenty years, Ed’s trial and appellate litigation practice has focused on complex patent and technology-related litigation. He has served as lead trial counsel in numerous patent ...

Joseph R. Lanser is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law. Joseph R., who practices law in Chicago, Illinois, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Joseph R. is held by other top lawyers in the same geographic and legal practice area.

Bill Kramer is an intellectual property attorney, focusing his practice on patent prosecution, patent threat analysis/response and intellectual property transfers. He has broad knowledge of many technical subjects, with particular experience in algorithm-based computer software, video distribution systems, cloud computing, artificial intelligence software, modern currency forms and transfers, and blockchain technologies. Bill leverages his technical aptitude and successful experience to help ...

Mike is a patent attorney who helps clients protect their complex technologies and innovations through representation on all aspects of patent law, including patent counseling, advice and prosecution, transactions, contested proceedings, and opinion preparation. He manages nationwide patent prosecution efforts for assorted technologies, overseeing similar efforts internationally, and counseling clients on the development and implementation of long-term patent portfolio strategies. He is regis...

Scott has over 25 years of experience representing famous brands. Scott is ultra-responsive and possesses the unique ability to explain his creative approach to protecting and policing famous brands to non-legal business and marketing professionals. Scott is co-chair of Barack Ferrazzano’s Intellectual Property Group and a member of the Luxury Group. His practice focuses primarily on U.S. and international trademark prosecution, beginning with policing, managing, and protecting the expa...

Dunstan H. Barnes is a Partner at McAndrews and practices in all areas of intellectual property law with emphasis on protecting and analyzing design rights. His work in that area includes drafting and prosecuting design patent applications and conducting opinion work and due diligence investigations. In addition, Dunstan has considerable experience drafting and prosecuting utility patent applications and trademark applications across a range of technological fields and industries. As a practi...

Tom represents clients in patent and trademark prosecution, intellectual property litigation, and post-grant patent challenges before the Patent Trial and Appeal Board (PTAB). Tom has a broad base of experience in various technological and business areas, particularly in pharmaceutical, biotechnology, chemical and medical device inventions. He drafts invalidity opinions, investigates freedom to operate, counsels on strategic portfolio management, and conducts due diligence investigations prio...