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William McCracken FULL.jpg

William E. McCracken, Esq.

Senior Counsel

direct: 630.286.7620  main: 773.570.3330  fax: 773.570.3328  


Practice Groups & Technologies: Patent Prep & Prosecution; Patent Counseling & Post-GrantComputers, Software, & Business MethodsElectronics, Semiconductors, & Optics

Mechanical Devices;

Office: Chicago


Bill’s career spans more than 40 years assisting companies of all sizes in identifying, protecting, and exploiting their technologies and proprietary processes. Bill has focused his intellectual property practice on patent, trade secret, and trademark litigation, and has also participated in the preparation and prosecution of hundreds of patent applications in the electrical, electro-mechanical, software, and mechanical arts.


In addition to his litigation experience in Federal Court, Bill has experience representing and counseling clients in post grant matters such as inter partes review (IPR) proceedings before the Patent trial and Appeal Board (PTAB).

Bill’s experience has not only included defense of clients but also enforcement of their IP rights. Using his business acumen, he has counseled clients in creating value from their intellectual property by designing sophisticated licensing programs and joint venture initiatives.


Bill’s clients include Fortune 500® companies and privately held multi-national corporations engaged in a variety of technologies. Bill also has extensive experience in the preparation of patent opinions, licensing agreements, confidentiality and non-disclosure agreements, trademark opinions, applications for trademark registration, and other IP enforcement actions.

Prior to joining Klintworth & Rozenblat IP, Bill had been a partner at three prestigious Chicago intellectual property firms where he engaged in significant competitive analyses in a broad range of technological competencies.



■ Richard Linn American Inns of Court (Emeritus)

■ American Intellectual Property Law Association (AIPLA)
■ Federation Internationale des Conseils en Propriete Industrielle (FICPI)
■ Intellectual Property Law Association of Chicago (IPLAC)
■ Intellectual Property Owners Association (IPO)
■ Eta Kappa Nu


■ Agricultural Implements

■ Electric Motors

■ Medical Devices

■ Air Pollution Cleaning Devices

■ Electrical Engineering

■ Optics

■ Engine Control Systems

■ Air Quality Monitoring Devices

■ Packaging Technology

■ Aircraft Control Systems

■ Entertainment Systems

■ Piezoelectric Pumps

■ Amplifiers

■ Environmental Engineering

■ Extrusion Technology

■ Power Conversion Systems

■ Filter Designs

■ Automated Trading Systems

■ Printing Technology

■ Automatic Guided Vehicles

■ Software Engineering

■ Automotive Vehicle Seats

■ Food Storage Bags

■ Semiconductor Design

■ Avionics

■ Fuel Cells

■ Speaker Systems

■ Business Method Software

■ Fuel Injection Systems

■ Sports Equipment

■ Cellular Telephones

■ Gas Turbines

■ Communication Systems

■ Surgical Navigation Systems

■ Generators

■ Thermoplastic Containers

■ Computer Science

■ Graphic Arts & Printing

■ Tool Holding Devices

■ Consumer Products

■ Wireless Networks

■ Industrial Pumps & Motors

■ Liquid Crystal Displays

■ Data Mass Storage Systems

■ Magnetics

■ Insect-Control Devices

■ E-book Technology

■ Transient Suppression Systems

■ Demand Optimization Software


■ J.D., Loyola University Chicago School of Law

■ B.S., Electrical Engineering, University of Illinois at Urbana-Champaign


McCracken & Gillen LLC


■ Admitted to practice law before the Supreme Court of Illinois

■ Admitted to practice before the U.S. Court of Appeals for the Seventh Circuit, the U.S. Court of Appeals for the Federal Circuit, the U.S. District Court for the Northern and Southern Districts of Illinois, and the U.S. District Court for the Western District of Michigan
■ Registered Patent Attorney before the U.S. Patent and Trademark Office including before the Patent Trial and Appeal Board

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