Michael D. Sidman, Ph.D.

SIDMAN Engineering, INC.

Mechatronics  ▪  Motor & Motion Control  ▪  Servo Systems

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Expert witness and technical consultant
in intellectual property and technology related litigation

  • Expert reports, deposition and trial testimony

  • Technical interpretation of patents and claims

  • Patent infringement analysis

  • Invalidity analysis

  • Technology and product investigation

  • Analysis and simulation of mechatronic products and dynamic systems

  • Assistance with technology licensing 

Areas of expertise


Motion Control

Digital Servo Systems

Electromechanical Systems


Adaptive Control

Simulation of Dynamic Systems

Active Shock and Vibration Control

System Identification

Computer Peripherals

Sensors and Actuators

Active Damping

Magnetic Disk Drives

Mechanical Resonances

Vector and Field Oriented Control

Optical Disc Drives

Control Systems

DC and AC Motor Control

Tape Drives and Printers

Dynamometer Control

Stepper Motor Control

Motor Drive Electronics

Analog Circuitry

Control Algorithms


  • Over 25 years experience providing expert witness services

  • Deposition and courtroom experience

  • Ph.D. - Stanford University in 1986 (Electrical Engineering and Aero-Astro Depts.)

  • Over 40 years industrial design experience

  • Independent engineering consultant to companies worldwide over 20 years

  • Named inventor on eighteen U.S. patents

  • Author, numerous technical papers

  • Founder, Digital Equipment Corporation  Storage Division's Servo-Mechanical Advanced Development Group

  • Senior Member - IEEE

  • Past Section Chairman - ASME

  • Listed in Marquis Who'sWho in Science and Engineering

Legal Cases

                 Biographical Information

                 Contact Dr. Sidman

Note: This web page contains introductory information only.  Please contact Dr. Sidman for a current Curriculum Vitae.
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