expert witnesses
Design Engineering Expert Witnesses: 30
Technology Analysis Expert William Acorn
William Acorn, P.E., CFLC, FASHRAE
Principal
16420 N 92nd St
Suite 224
Scottsdale AZ
85260
USA
phone: (602) 888-7250
fax: 602-888-7250
Forensic Engineering Expert Witness Adam Aleksander
Adam K. Aleksander
Principal
PO BOX 140558
Boise ID
83714
USA
phone: 208-321-0200
Patent Mechanical Engineer Product Liability Expert Witness David Smith
David Smith
Vice President
111 W. Canyon Crest Road
Alpine UT
84004
USA
phone: 801-763-8484
fax: 801-763-5755
Architectural Forensics Expert Witnesses
Dan Weekes, AIA, NCARB, BECxP, CxA+BE
Jim Stutzman, AIA, NCARB, CSI
8500 East 116th Street, #6142
Fishers IN
46038
USA
phone: 317-746-8292
Patent Product Analysis Expert Michael Nranian
Michael Nranian, JD, MBA, MS
10945 Stoney Point
South Lyon MI
48178
USA
phone: 248-376-0338 or 248-446-4052
Electrical Engineering Expert Witness Thomas Burtness
Thomas H. Burtness, PE
2195 Wagon Trail Rd.
White Heath IL
61884
USA
phone: 217-687-2000
Transportation Construction Expert Witness Thomas Young
Thomas J. Young, PE
Founder, Chairman, CEO
Roseville CA
95747
USA
phone: 916-662-5022
Mechanical Engineering Expert Witness Michael Pollock
Michael A. Pollock, PE, USPTO
405 Barbara Lane
Bryn Mawr PA
19010
USA
phone: 610-955-4811
Construction Defect Expert Witness Sanford Loy
Sanford C. Loy , CCM, B.Arch, MSCE
Principal
200 Prosperity Drive
Knoxville TN
37923
USA
phone: 865-675-3603, ext. 102
fax: 865-675-0009
Control Systems Software Expert Witness Harry Direen
Harry G. Direen, PhD, PE
Consultant
Colorado Springs CO
80921
USA
phone: 877-869-5201
Security Systems and Electronics R and D Expert Witness James Parker
James Parker
205 Hammerstone Crescent
Thornhill Ontario
L4J 8A9
CAN
phone: 416-302-7501
Mechanical Structural Engineer Expert Michael Plunkett
Michael Plunkett, P.E.
President
58 Briarwood Dr
Wakefield, RI 02879
RI, NH, CT, MA, VT, ME, FL, NY, GA
02879
USA
phone: (cell) 401-935-6557
fax: 801-729-0611
Automation Mechatronics Expert Witness Khalid Sorensen
Khalid Sorensen, PhD
CTO
Walla Walla WA
99324
USA
phone: 678-984-1224
Habitat Engineering Expert Fari Barzegar
Dr. Fari Barzegar
Ph.D., P.E., CPEng
446-17th Street, Suite 300
Oakland, CA 94612
All States USA, International, CAN, AUS
phone: 510-891-0300
fax: 510-891-0333
Fitness Equipment Expert Witness Harvey Voris
Harvey C. Voris
Principal Owner
8381 Deepcliff Drive
Huntington Beach CA
92646
USA
phone: 714-350-6160
Featured resources
by William R. Acorn
by National Lilbrary of Medicine
by Anthony Chang, MD, et al
William R. Acorn is founder of Acorn Consulting Services, LLC, an engineering firm. As a consulting mechanical engineer, Bill provides project analysis, forensic reconstructions and litigation support services relating to the design, delivery, and functioning of high-tech manufacturing facilities, semiconductor fabrication facilities, institutional laboratories, data centers, health care facilities and a variety of commercial buildings. He is a recognized expert in the evaluation of deficiencies in HVAC systems, cleanrooms, piping systems, refrigeration systems, construction defects, building and fire code compliance, and patent and trade secret disputes. He represents both plaintiffs and defendants.
Dr. Adam K. Aleksander, PhD, PE, CSP, has over 40 years of experience in the areas of Mechanical Engineering, Human Factors, and Safety Engineering. He combines both academic credentials and active work in industry to provide a grounded perspective in Product Liability, Industrial Incidents, Warnings, and OSHA related issues. He is also a VP of an Energy Services firm, with over 35 overseas assignments related to forensic services, power utility issues, and equipment failures.

Dan Weekes, AIA, NCARB, BECxP, CxA+BE, has over 25 years of Architectural and Engineering Building Envelope and consulting project management as well as litigation and deposition proceedings.
Thomas H. Burtness, PE, is an Electrical Engineer specializing in both Electrical and Building Construction - equipment selection, specification, and installation (actually “working with the tools”), as well as cost control techniques.
Thomas J. Young, PE, has over 39 years of experience in national and international Transportation Construction, the Civil Engineering specialty regarding highways, bridges, rail, airports, harbors, and associated infrastructure.
Michael A. Pollock, PE, USPTO, is a Mechanical Engineer responsible for the design and engineering of commercial, industrial, manufacturing, institutional, and residential venues, as well as efforts relating to services and products used in and around these facilities. Mr. Pollock's full CV can be viewed at cogentexpert.com.
Sanford C. Loy , CCM, B.Arch, MSCE, has over 40 years of experience in the Construction Industry. Mr. Loy has Degrees in Architecture and Engineering. A Certified Construction Manager (CCM), he is committed to the Code of Ethics and Standards of Professional Practice established by the Construction Management Association of America. CCM is the ANSI accredited professional designation for construction management and is the gold standard for CM service providers in over 145 countries.
James Parker has over 35 years of relevant industry experience specializing in Electronic Security Systems & Sensors, Electronics R&D, and New Product Development. He has in-depth knowledge of electronic product design in both Wired and Wireless Technologies and outstanding knowledge of Environmental and False Alarm Immunity. Products, such as alarm systems, that Mr. Parker led the design of, have an installed base in the millions.
Khalid Sorensen, PhD, is a highly accomplished technology leader in Automation, Mechatronics, Motion Control, Manufacturing, Machine Vision, and Human-Machine Interaction. He has over 20 years of experience developing and deploying world-class mechatronic, motion control, and automation solutions.

