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Law Office of Marc D. Machtinger, Ltd.

Marc D. Machtinger, Attorney at Law




Marc D. Machtinger is an experienced Registered Patent Attorney and a former Patent Examiner from the U.S. Patent and Trademark Office (we invite you to verify Mr. Machtinger's registration using the online Attorney Roster at the U.S. Patent and Trademark Office website. A new browser window will pop up so you won't lose this page.)

Mr. Machtinger's academic background includes the following:

  • Juris Doctor, Washington University School of Law
  • Master of Science in Electrical Engineering, Washington University
  • Bachelor of Science in Mechanical Engineering, Northwestern University

Mr. Machtinger is licensed to practice law in Illinois and Washington, D.C., and licensed before the U.S. Patent and Trademark Office.

His license credentials include:

  • Supreme Court of the State of Illinois (member of the Illinois Bar)
  • District of Columbia Court of Appeals (member of the Washington, D.C. Bar)
  • Supreme Court of the United States
  • U.S. Court of Appeals for the Federal Circuit
  • U.S. Court of Appeals for the Seventh Circuit
  • U.S. District Court for the Northern District of Illinois
  • U.S. Patent and Trademark Office (member of the Patent Bar)

He is a member of the American Bar Association (ABA), the Chicago Bar Association (CBA), the Intellectual Property Law Association of Chicago (IPLAC), and the Patent and Trademark Office Society (PTOS). He attends Continuing Legal Education seminars regularly in order to keep abreast of developments in the law.

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Before entering the field of law, Marc Machtinger gained engineering experience designing control and feedback systems for use in the manufacturing industry. Mr. Machtinger served as a Patent Examiner at the U.S. Patent and Trademark Office for over 2 years. His responsibilities as a Patent Examiner included examining U.S. and international patent applications in the fields of physics, optics and related engineering, particularly in the communication equipment area. He was also involved with reissue applications, reexamination proceedings, and appeals to the Board of Patent Appeals and Interferences.

Mr. Machtinger gained expertise in private practice at a downtown Chicago intellectual property law firm in all areas of the field. In addition to a workload of trademark, licensing, litigation projects, and opinion matters, etc., he has been involved with the preparation and prosecution of patent applications for various clients in the fields of medical devices, electronics, mechanical devices, software, internet-related applications, and numerous other technologies.

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About our Practice

Mr. Machtinger established the Law Office of Marc D. Machtinger, Ltd. in the northwest suburbs of Chicago. His practice extends to all aspects of Intellectual Property Law, as well as to business formation matters. Legal services are provided by conventional means as well as through our innovative online features. He currently provides quality, professional services to individuals, small businesses, and Fortune 500 companies. Mr. Machtinger is committed to meeting the individual needs and interests of his clients, and providing quality, professional Intellectual Property legal services to his clients in a prompt, affordable manner.

Working with Outside Counsel and Foreign Associates: Mr. Machtinger welcomes the opportunity to work with general practice attorneys when intellectual property matters arise. Mr. Machtinger also works with in-house corporate counsel on intellectual property matters, and outside patent counsel when conflicts of interest arise. He welcomes the opportunity to assist foreign counsel in their U.S. pursuits.

Attorneys: Please see our Referral Policy information.

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Contact Us

E-mail us at:

[Please do not transmit confidential information via e-mail]

Telephone: (847) 537-3537

Facsimile: (847) 537-0550

Our Office Address:

Law Office of Marc D. Machtinger, Ltd.
750 W. Lake Cook Road, Suite 350
Buffalo Grove, Illinois 60089-2073

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Our office is located in the northwest suburbs of Chicago.

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