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John H. Engelmann

Of Counsel




University of Illinois Law School, J.D., 1974

University of Illinois, Ph.D. 1970

University of Wisconsin-Milwaukee, B.S. 1964

Bar Admissions

Court Admissions

U.S. Patent and Trademark Office

John Engelmann practices in the intellectual property area including U.S. and foreign patent procurement, trademarks, patent strategies, patent estates assessment, and transactional matters.

He provides patentability, design around, patent validity and infringement opinions. He has experience in FDA, regulatory law, and contracts and is admitted to practice before the United States Patent and Trademark Office. He has extensive patent prosecution experience in chemicals and pharmaceuticals, especially with anti-cancer agents, CNS drugs, anti-infective agents, animal health products and process chemistry. 

Prior to joining Miller Canfield, he was senior corporate counsel for intellectual property and patent counsel for two of the world's largest pharmaceutical companies for more than a decade. He also has more than 20 years of additional experience as a patent attorney for several oil and chemical companies and a medical device group.

Representative Matters

Representative Matters

U.S. and foreign patent prosecution, intellectual property due diligence for venture fund clients, patent estate assessment, patent strategy, patent interference, trademarks, contracts, and transactional matters.


Best Lawyers in America, Litigation - Patent, 2016-present

State University of New York at Buffalo, Post Doctoral Fellowship

University of Illinois, Ph.D. Chemistry

University of Wisconsin-Milwaukee, B.S. Chemistry

Professional Activities

American Bar Association

State Bar of Michigan

Connecticut Bar Association

American Intellectual Property Law Association

American Chemical Society, Kalamazoo Chapter, Chairman Elect 2012

Engineering Society of Detroit


“Benzoylation of the Sodium Salt of 6(5H)-Phenanthridinone and an O-to-N Benzoyl Migration” David Y. Curtin, John H. Engelmann, Tetrahedron Letters No. 36, pp.3911-3913, 1968

“An Interaction Frequency Index and the Kinetic Molecular Theory,” John H. Engelmann; Heuristics 3:2, pp 44-47

“The ENDOR spectrum of bis(p-methoxyphenyl)nitroxide,” Robert D. Allendoerfer; John H. Engelmann; Molecular Physics, Vol.  20, Issue 3, March 1971, pages 569 - 571

“Intramolecular oxygen-nitrogen benzoyl migration of 6-aroyloxyphenanthridines,” David Y. Curtin, John H. Engelmann, J. Org. Chem., 1972, 37 (22), pp 3439–3443

“Interaction Frequency and Behavior in the Chemical Laboratory,” John H. Engelmann and Hugo O. Engelmann; Wisconsin Sociologist Vol. 12 pp. 107-121, 1975

“Case Law, Statute Law, and the Nature of Institutions,” John H. Engelmann and Hugo O. Engelmann; International Behavioral Scientist, Vol. IX No. 2 pp. 1-19

“Picric Acid: C6H3N3O7,” Eileen N. Duesler, John H. Engelmann, David Y. Curtin, and Iain C. Paul; Cyrst. Struc. Comm. (1978).7, 449-453

“Home Use Diagnostics: Marketing, Labeling, and Regulatory Considerations,” Medical Device & Diagnostic Industry, Vol. 5 No. 11, p. 50-53 & p. 92; 1983