John Kilyk, Jr.

Patent Law

5.0 (1 reviews)

Chicago, Illinois

8+ years experience

Updated: Jan 04, 2026

Contact Information

312-616-5600

https://www.leydig.com/professionals/john-kilyk/

Two Prudential Plaza, Suite 4900 180 North Stetson Avenue Chicago IL US

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Bio

John Kilyk, Jr. is a dedicated Patent Law attorney serving clients throughout Illinois. Drawing on 8 years of experience, Kilyk, Jr. provides knowledgeable counsel in Patent Law. Kilyk, Jr. practices at Leydig, Voit & Mayer LTD, serving clients throughout Illinois. Clients benefit from Kilyk, Jr.'s dedication to clear communication and responsive service. John Kilyk, Jr. practices law in Illinois with a focus on achieving client objectives.

Practice Areas

Patent Law

Awards & Recognition

Recognized: Patent Law
Practice Area: Biotechnology and Life Sciences Practice
Practice Area: Commercial Litigation
Practice Area: Copyright Law
Practice Area: Litigation - Intellectual Property
Practice Area: Litigation - Patent
Practice Area: Trademark Law
AV® Preeminent™ Peer Review Rated (Highest Rating) – Martindale-Hubbell
Listed among the Top Lawyers in Illinois in Intellectual Property Law – Chicago Lawyer
Selected by peers as a Leading Lawyer in Intellectual Property Law – Leading Lawyers Network
Recommended in the category of "Intellectual Property – Patent Litigation: Life Sciences/Chemical" – The Legal 500 – The Clients’ Guide to the US Legal Profession (2010)
Named as one of "The World's Leading Patent Practitioners" - Intellectual Asset Management's IAM 1000
Recognized nationally as a "Recommended Authority on Post-Grant Procedures" – Intellectual Asset Management's The World's Leading Patent Practitioners
Selected as a "Life Sciences Star" – LMG Life Sciences
Named as one of the "Super Lawyers" for Intellectual Property - Super Lawyers Magazine
Named as an "IP Star" - Managing Intellectual Property (2013-2016)
Recommended in the category of "Intellectual Property - Patent Prosecution - Utility and Design Patents" – The Legal 500

Recognized in Best Lawyers since 2017

Education

Georgetown University, J.D., graduated 1983
Kenyon College, B.A. in Chemistry, graduated 1980

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Reviews

Andrew Ortiz

2 weeks ago

A brilliant patent attorney who truly understands biotech

Our startup was facing a complex patent infringement challenge that threatened our core technology. We needed an attorney who could grasp the intricate science behind our diagnostic platform and translate it into a powerful legal argument. John Kilyk, Jr. was exactly that person. His background in chemistry from Kenyon College and his deep focus on biotechnology patent law allowed him to immediately understand our position. He guided us through the litigation with a strategic, clear-eyed approach that was both aggressive and pragmatic. The result was a highly favorable settlement that secured our intellectual property. His recognition in patent law and life sciences is well-deserved. John is not just a superb lawyer; he’s a critical business ally for any innovator in Illinois.