Dr. Christopher M Daft

River Sonic Solutions LLC
2443 Fillmore St #380-4039
San Francisco, CA 94115
Mobile: 408-806-7525
Office: 415-800-3734

Award winning, Oxford Educated scientist whose areas of expertise include medical imaging, electronics, semiconductors, medical devices, sensors, MEMS, signal processing and image processing.

Dr Daft has deposition and trial testimony experience including district court, ITC and PTAB matters.

Extensive Intellectual Property experience including patent development, analysis, licensing, and litigation. Serial inventor who holds 26 U.S. Patents.

Diverse industry experience including multi-nationals such as GE, Medtronic, Fujifilm, Samsung and Siemens as well as several start-ups.

Well published. Winner of grants from National Institute of Health. Extensive international consulting experience. IEEE (Institute of Electrical and Electronic Engineers) Senior Member since 2004.

Three years’ experience teaching electrical and computer engineering at the University of Illinois.

Holds BA and MA in Physics from Oxford University as well as Doctorate from Oxford in Materials Science.

Areas of Expertise
  • Design Engineering
  • Electrical Engineering
  • Electromagnetic Engineering
  • Electronics
  • Intellectual Property
  • Medical Devices
  • Microelectronics
  • Patents
  • Physics
  • Semiconductors
  • Software
  • Software Engineering
  • Technology

Expert Background
Q: Please list your professional accreditations, degrees, licenses, and certificates granted:
A: BA (Oxford University, UK) with First Class Honors
MA (Oxford University, UK)
Doctorate (Oxford University, UK)
Q: Please list your affiliations or memberships in any professional and/or industry organizations:
A: Senior Member, Institute of Electrical and Electronic Engineers
Q: Please list any teaching or speaking experience you have had, including subject matter:
A: 3 years of teaching Electrical Engineering at the University of Illinois at Urbana-Champaign
Frequent presentations at conferences
Q: Have any of your accreditations ever been investigated, suspended or removed? (if yes, explain)
A: No
Q: On how many occasions have you been retained as an expert?
A: 11
Q: For what area(s) of expertise have you been retained as an expert?
A: Wearable electronics -- patent infringement
Medical imaging systems -- patent infringement
Medical devices -- patent infringement
Surgical device -- medical malpractice
Medical product liability
Q: In what percentage of your cases were you retained by the plaintiff?
A: 50
Q: In what percentage of your cases were you retained by the defendant?
A: 50
Q: On how many occasions have you had your deposition taken?
A: 13
Q: When was the last time you had your deposition taken?
A: August 2023
Q: On how many occasions have you been qualified by a court to give expert testimony?
A: 5
Q: For how many years have you worked with the legal industry as an expert?
A: 7
Q: What services do you offer? (E.g.: consulting, testing, reports, site inspections etc.)
A: Consulting, patent review, reports, testimony at deposition and trial, source code review.
Q: What is your hourly rate to consult with an attorney?
A: $575
Q: What is your hourly rate to review documents?
A: $575
Q: What is your hourly rate to provide deposition testimony?
A: $575
Q: What is your hourly rate to provide testimony at trial?
A: $575
Q: Please list any fees other than those stated above (E.g.: travel expenses, copy fees, etc.)
A: none


Konrad Sherinian, Law Offices of Konrad Sherinian, (630) 318-2606, ksherinian@sherinianlaw.net
Jon Rastegar, Bragalone Conroy, (214) 785-6670, jrastegar@bcpc-law.com
Vickie Feeman, Orrick, (650) 614 7620, vfeeman@orrick.com