Robert F. Billings

Mr. Billings joined Darrow Mustafa in 2018.


Practice Summary

Prior to joining the firm, Mr. Billings assisted in the preparation and prosecution of patent applications in the electrical and mechanical fields. 


Professional Experience

Mr. Billings has over 20 years experience in electrical and mechanical design including significant expertise in the automotive industry. As a lithium ion battery application engineer, his experience covers Li-Ion battery module/pack design and validation testing, Hybrid Electric Vehicle (HEV) and Electric Vehicle (EV) system architecture design, battery algorithm simulation and software validation. As a systems simulation engineer and electrical hardware designer, his experience includes automotive controller design, multi-domain system simulation and algorithm modeling, as well as design release for both automotive OEMs and Tier One suppliers.



  • Juris Doctorate, 2017, Wayne State University Law School
  • M.S., Engineering, 1993, Purdue University

  • B.S., Electrical and Computer Engineering, with distinction, 1988 University of Michigan


Admitted t0 practice

  • U.S. Patent and Trademark Office


Prior industry employment

  • Patent Agent, Tenneco, Monroe, Michigan
  • IP Law Clerk, Bejin Bieneman, PLC, Detroit, Michigan



  • Makki, A., Dixit, R., and Billings, R., "Top-Down Design Methods Using Simulation," SAE Technical Paper 950416, 1995, doi:10.4271/950416.
  • Billings, R., “From Subsystem Modeling to the Complete Vehicle Thermal Management Using a Single Simulation Platform,” Panel Presentation at NDIA (National Defense Industrial Association) Ground Vehicle Power & Energy Workshop, 2008.
  • Billings, R., “Desktop and HIL Validation of Hybrid Electric Vehicle Battery Management System Algorithms,” Panel Presentation at SAE World Congress conference, 2007.
  • Billings, R., “Top Down Design Methods Using Simulation,” Panel Presentation at SAE International Congress & Exposition, 1995.



Bob Billings