Intellectual Property Litigation

Clark Hill intellectual property attorneys offer a comprehensive trial and appellate practice in the area of patent, trademark, and copyright. The firm also practices in the areas of unfair competition, trade secret misappropriation and other forms of intellectual property litigation. We serve our clients by aggressively enforcing its clients’ intellectual property rights and by defending clients against infringement, misappropriation, and other claims and violations. Complex litigation is managed effectively and successfully with the aid of sophisticated computer technology for trial exhibits and case management.

We have represented clients in a variety of patent and trademark infringement, antitrust, trade secret, unfair competition, and related "business tort" lawsuits. We can quickly gear up to obtain or defend against preliminary injunctions and to handle the accelerated proceedings these cases often require. Our sophisticated litigation support capability is a valuable asset in these situations.


Acted as counsel for prominent health care company in patent infringement actions involving comprehensive health care management system.
Acted as counsel for medical device manufacturer in patent infringement litigation involving powered medical injectors and associated syringes.
Cross-examined witnesses in successful trade secret action against large multi-national biochemical company.
Handled claim construction phase of patent infringement litigation involving prepaid calling cards and systems.
Acted as lead counsel in patent infringement action against leading copier company and obtained very favorable settlement for client.
Filed and successfully prosecuted numerous U.S. and foreign applications to register trademarks and service marks for many clients, including large national household appliance manufacturer.
Acted as lead counsel in patent infringement action involving feedthrough filter capacitors for use in pacemakers.
Acted as lead counsel in patent infringement litigation involving electronic measurement for marine propellers.

Intellectual Property Litigation - Represented major health insurance company in suit to compel private arbitration of dispute under Trademark Act and alleged breach of fiduciary duty regarding alleged diversion of managed care business and use of famous trademark in connection with alleged diversion.

Clark Hill Lawyers Named 2020 Leading LawyersClark Hill Attorneys Named 2019 Michigan Super Lawyers & Rising StarsSixty-Six Clark Hill Attorneys Named 2018 Michigan Super Lawyers & Rising Stars143 Clark Hill Attorneys Selected for Inclusion in the 2019 Edition of Best Lawyers in AmericaIntellectual Property Attorney Michael Bednarek Joins Clark Hill’s Washington, DC office Clark Hill Attorney Russell E. Cass to Speak on the Supreme Court’s Recent Landmark Patent Decisions in Oil States and SAS Institute on May 2, 2018Sixty-Seven Clark Hill Attorneys Named 2018 Leading LawyersClark Hill Attorneys Named to DBusiness Magazine's 2018 Top Lawyers ListClark Hill PLC Receives National and Regional Tier 1 Rankings in the 2018 Edition of Best Lawyers, “Best Law Firms”Clark Hill Attorney John L. Hines, Jr. Named Board Chair of the Erikson InstituteClark Hill Attorney Russell E. Cass to Moderate Federal Circuit Bar Association Webinar on October 26, 2017Clark Hill Attorney Russell E. Cass to Moderate ABA IP Litigation Committee Roundtable on October 13, 2017Intellectual Property Attorney Russell E. Cass Joins Clark Hill PLC Clark Hill Attorney David J. Marr Named 2017 Distinguished IP Alumni by Chicago-Kent College of Law Alumni Association Clark Hill Attorneys John L. Hines, Jr. and John S. Paniaguas Author Chapters in IICLE 2017 Edition of “Intellectual Property Law”Clark Hill Attorney John L. Hines Jr. will co-present “Digital Transactions: The Global Legal Framework for E-Signatures and Records” Sponsored by the American Bar AssociationClark Hill Attorneys Donald A. Shindler, John L. Hines Jr. and Jillian B. Steinberg Presented “Ethics and the Use of Social Media” to the Chicago Mortgage Attorneys Association January 25, 2016David Ries and Jennifer Woods to present "Recovery from Identity Theft: Legal and Practical Considerations" Sixty-Six Clark Hill Attorneys Selected for the 2015 Super Lawyers Business EditionClark Hill Attorney Timothy M. McCarthy Presented at Motor & Equipment Remanufacturers’ Association Joint Council Meeting on August 18, 2015Clark Hill Attorney John L. Hines Jr. to Discuss E-Signatures at ABA Webinar August 19, 2015Clark Hill Attorney John L. Hines, Jr. Presented on “E-Signatures: How the Law of Contracts is Changing,” a Webinar Co-sponsored by the ABA Law practice Division and the American Law Institute Continuing Legal Education Intellectual Property Attorney Kevin S. Sprecher Joins Clark Hill Chicago