Dierker and Kavanaugh
  • (248) 649-9900
Joseph B. Dierker, Jr.
Joseph B. Dierker, Jr.
Joseph B. Dierker, Jr., PE,

Senior Associate Attorney
Main: (248) 649-9900
Email: josephd@troypatent.com

Patents, Trademarks

Mechanical, Electrical, Optics, Medical Devices, Life Sciences, Materials, Electrochemical, and Information Technology arts


Mr. Dierker is a senior associate attorney at the firm, and has domestic and foreign patent prosecution and procurement experience in the electrical, mechanical, and other arts.

Before becoming a patent attorney, Mr. Dierker distinguished himself as an engineer for more than 20 years. His engineering work covered a wide variety of technologies, giving him breadth of knowledge that translates to quick understanding of new technologies presented by inventors. Mr. Dierker’s engineering work included: aircraft cockpit design; flight simulation; anti-lock pneumatic brakes; control system software design; automated manual transmissions; hydraulic transmissions; axles and differentials; vehicle integration; sensors and actuators; fuel systems; cooling systems; climate control systems, and on-board fire suppression. He has worked in research, product development, production, and field support phases of engineering in the United States and in Europe. He is an award-winning technical speaker.


J.D. cum laude, University of Detroit Mercy School of Law, 2009
MSEME, University of Michigan-Dearborn, 1989
B.M.E., magna cum laude, University of Detroit, 1985


State Bar of Michigan, 2009
U.S. District Court, E.D. Michigan, 2009
U.S. Patent & Trademark Office, 2006
U.S. Supreme Court, 2017

  • Licensed Professional Engineer, Michigan
  • Chartered Engineer, Europe
  • Inventor: U.S. Patent Numbers: 4,862,025; 4,862,028; 4,893,075; 5,847,344; 5,152,544; 7,198,111; 7,360,605; 7,448,452; 7,451,830; 7,854,288; and 7,896,121
  • Co-Author: "Development of Ford Fire Suppression System" published by SAE, 2005. Republished as "Fire Suppression System Development for the Ford Crown Victoria Police Interceptor," published by National Institute of Standards 2005.
  • SAE Outstanding Oral Presentation Award, 2005.
  • Author, "Ford`s 1996 Crown Victoria Dedicated Natural Gas Vehicle. Final report, January 1991-December 1995," published by the Gas Research Institute and the U.S. Dept. of Commerce, National Technical Information Service.
  • Michigan Intellectual Property Law Association (MIPLA)
  • Oakland County Bar Association
  • Society of Automotive Engineers (SAE)
  • Member of Institution of Mechanical Engineers (IMechE) (U.K.)