Intellectual Property

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Business clients recognize the importance of retaining experienced trial lawyers to enforce and defend their intellectual property rights.

Clients choose Williams Montgomery & John, a firm of trial lawyers, to protect their valuable intellectual property assets because we have a substantive grasp of the technical issues, are able to synthesize and simplify complicated concepts, and have the trial skills necessary to present our clients' cases to judges and juries in a compelling manner. Our attorneys combine strong academic and practical backgrounds in engineering, mathematics and science with honed public speaking and advocacy skills.

In the intellectual property area, the firm has successfully prosecuted and defended infringement, misappropriation, and unfair competition claims involving patents, trademarks, trade dress, copyrights and trade secrets. We have taken many cases to verdict as lead trial counsel in both jury and bench trials nationwide and have argued appeals in the Illinois appellate courts and the U.S. Court of Appeals for the Seventh and Federal Circuits. Our trial attorneys are equally experienced in designing risk management and case resolution strategies to minimize the risk and likelihood of litigation.

Our clients range from individual entrepreneurs and startup companies to established mid-sized businesses and Fortune 500 companies,  Our services have addressed IP issues in the fields of advertising, authorship, arts and entertainment; radio and television broadcasting; computer security devices; environmental technologies; financial technologies; industrial turbine technology; medical, dental, orthopedic and orthodon­tic products; medical and clinical testing devices; trucking and transportation, including air-ride and leaf-spring suspension technology; the publishing industry; and Internet domain names.

Attorneys in our intellectual property practice group have both prosecuted and defended patent infringement, inventorship,and validity claims on behalf of clients in the trucking and transportation suspension systems industry; represented MTV Networks in licensing and copyright disputes related to the Chicago Bears "Super Bowl Shuffle" video; defended Jennifer Lopez and her producers in a federal Lanham Act trademark litigation; defended copyright infringement claims against the Nielsen Company; and prosecuted international trademark infringement claims on behalf of Sears Roebuck and Co. and Westinghouse Electric Corporation in the United States, Europe, and China.

A more descriptive list of representative matters can be found by clicking on the "Representative Matters" link above.

The firm's intellectual property practice is led by partner David Applegate, who is President of the Chicago Lincoln Inn of Court, a Fellow of the Litigation Counsel of America, and a Member Emeritus of the Richard Linn American Inn of Court, part of the nationwide intellectual property Linn Inn Alliance.  Mr. Applegate has been consistently selected by his peers for inclusion in Illinois Leading Lawyers and Super Lawyers for both commercial and intellectual property litigation.

For more information about the firm's intellectual property litigation practice, please contact Mr. Applegate at 312.855.4851 or


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