Robert W. Diehl

(847) 925-9641

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Bob practices in all areas of intellectual property law. While he maintains a strong emphasis on preparation and prosecution of U.S. and foreign patents and trademarks, his experience includes extensive work in product clearance, non-infringement and patentability opinions, and due diligence. Through his individualized client counseling, he helps clients develop and implement sound, cost-effective protection, and competition strategies.

Bob is a registered U.S. Patent Attorney with more than 25 years of experience. He has prepared and prosecuted U.S. and foreign patents in many technical areas. In the mechanical arts, Bob has prepared and prosecuted applications for numerous devices, methods and systems, such as industry and municipal waste and water pump systems, combustion engines, exhaust systems, specialized military vehicles, automated packaging systems, bypass filtering systems, exercise equipment, home safety devices, hand and power tools, computer peripheral devices, molded plastic connectors, vapor deposition processes, printing machines, electron beam sterilization, sputtering technology and anti-corrosion devices, to name a few. In addition, Bob has prepared and prosecuted patent applications in the chemical arts, including pharmaceuticals, water treatments and biocides, super-absorbing clay compounds, surfactant filtering technology, polyolefin sheet material, hydrocarbon fuel reforming methods and apparatuses, thermoformed articles and thin film casting machines. Bob has also prepared and prosecuted applications in the electrical and computer arts, including numerous smartphone apps, cloud, server and web-based processes, and computer automated processes.

Prior to becoming an attorney, Bob began working as a patent agent at a law firm in Colorado. He continued working as an agent after moving to Chicago where he attended law school. Before entering the legal field, Bob worked in quality control and a research and development lab where he conducted chemical and physical tests on various materials including aluminum powders, fuels, oils, polymers, and metal components.

Bob received his J.D. from The John Marshall Law School in Chicago, Illinois in 1997, and his Bachelor of Science degree, majoring in chemistry, from Colorado State University in 1989.

Bob is admitted to practice in the state of Illinois and before the Supreme Court of the State of Illinois, the U.S. District Court for the Northern District of Illinois, the United States Court of Appeals for the Federal Circuit, and is registered with the U.S. Patent and Trademark Office.

Bob is a member of the Illinois State and Federal Bar Associations, as well as the American Intellectual Property Law Association.