Brendan J. Hammer

Partner Ryan T. Johnson concentrates his practice in the areas of construction law, professional liability, and complex commercial litigation. Ryan has over 15 years of experience successfully representing clients in construction related matters in Illinois and nationally, including jury and bench trials in state and federal courts as well as arbitration proceedings. In addition to dispute resolution, Ryan also engages in contract negotiations, contracting drafting and business counseling on ...

In each year since 2015, Bryan has been listed in the IAM Patent 1000 – The World’s Leading Patent Professionals for Litigation. He is also recognized in Patent Litigation: Full Coverage in the 2018, 2021 and 2022 editions of The Legal 500 United States. Bryan has litigated and counseled on patent matters for companies of various sizes across a variety of complex industries and technologies including medical devices, optical networking, pharmaceuticals, 3-D technology, material co...

Marc R. Fisher is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Marc R., who practices law in Bannockburn, Illinois, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marc R. is held by other top lawyers in the same geographic and legal practice area.

Kevin represents his clients in all aspects of patent law, including due diligence investigations for mergers and acquisitions, patent counseling and prosecution, strategic management of patent portfolios, and opinion preparation, focusing his practice primarily on the biotechnological, pharmaceutical, and medical device industries. Kevin’s work encompasses a broad spectrum of technologies, including therapeutics such as cellular therapies, gene therapies, vaccines, large molecules (bio...

Roshan P. Shrestha Ph.D. is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property. Roshan P., 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 Roshan P. is held by other top lawyers in the same geographic and legal practice area.

James F. Botana is a principal in the Chicago, Illinois, office of Jackson Lewis P.C. He represents management in employment cases in federal and state courts, and before administrative agencies in a variety of employment and labor-related claims. Prior to joining Jackson Lewis, he was a prosecutor and a senior attorney in the Employment Litigation Department of the Office of the Corporation Counsel for the City of Chicago. He has successfully prosecuted and defended numerous civil and crimin...

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...

Troy A. Groetken, Shareholder Email: tgroetken@taftlaw.com Tel. (312) 775-8259 Practice Areas: Global Intellectual Property Portfolio Analysis, Counseling & Management; Complex Chemical, Small-molecule Pharmaceutical, and Biotechnological Patent Prosecution; Intellectual Property Acquisition, Divestiture, and Licensing; Clearance, Freedom to Operate & Invalidity Opinions; Trademark Prosecution; Antitrust; Intellectual Property Landscaping Education: Drake University, College of Pharma...

Marc Benjoya is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Defendants. Marc, who practices law in Chicago, Illinois, has been recognized since 2012. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marc is held by other top lawyers in the same geographic and legal practice area.

Philip Harnett Corboy, Jr. was admitted to the Illinois Bar in 1978 and worked in a small white-collar criminal defense firm before joining the criminal division of the Cook County State's Attorney's Office that same year. At the time of his resignation from that public office in 1985, he was a "first-chair" prosecutor - responsible for trying such felonies as murder, rape, armed robbery and kidnapping - in one of the major courtrooms at the Cook County Criminal Courts Building at 26th and Ca...