expert witnesses
Materials (General) Expert Witnesses: 25
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
Materials Evaluation Expert Witness Charles Anderson
Dr. Charles R. Anderson
President & Principal Scientist
9051 Red Branch Road, Suite C,
Columbia MD
21045
USA
phone: (410) 740-8562
fax: 410-740-8201
Aviation Safety Expert Witness Keith Cianfrani
Keith M. Cianfrani, MAS, CRSP
Aviation Safety Consultant
Pennsylvania Office:
350 New Britain Road
Doylestown, PA 18901
USA
Florida Office:
3389 Conservation Trail
The Villages, FL 32163
USA
phone: 267-377-5364 (Cell)
Technology Engineering Patent Expert Witness Rolf Biernath
Rolf Biernath, PhD
25534 Heritage Ln.
Wyoming MN
55092
USA
phone: 612-400-4004
Mechanical Engineering Expert Witness Michael Pollock
Michael A. Pollock, PE, USPTO
405 Barbara Lane
Bryn Mawr PA
19010
USA
phone: 610-955-4811
Chemical Engineering Expert Witness David Rockstraw
David Rockstraw, PhD, PE
PO Box 7
Mesilla NM
88046
USA
phone: 575-635-9539
Building Design Construction Expert Witness David Morris
David Morris
El Cajon CA
92019
USA
phone: 619-572-3179
Packaging Expert Witness Randy Phares
Randy Phares
President / CEO
15504 N 169th Ave
Surprise Arizona
85388
USA
phone: 775-443-5529
Engineering Expert Paul Eason
Paul Eason, Ph.D., P.E., CFEI
4600 Touchton Road,Building 100, Suite 150
Jacksonville FL
32246
USA
phone: 904-279-9300 or 888-504-5454
Metallurgy Failure Analysis Expert Arun Kumar
Dr. Arun Kumar
Ph.D.
250 N. Nash Street
El Segundo CA
90245
USA
phone: 310-322-2011
fax: 310-322-2243
Materials Engineering Expert Lester Engel
Lester B. Engel Jr., PE, CEO
James A. Brusso, PhD, PE
925 Industrial Drive South
Sauk Rapids MN
56379
USA
phone: 1-800-258-7968 -or- 320-253-7968
fax: 320-253-7917
Plastics Rheological Expert David Riley
David W. Riley
President, PhD and Physical Organic Chemistry
858 Princeton Ct.
Branchburg NJ
08853
USA
phone: 908-369-7260
fax: 908-369-7260
Polymer Fiber and Textile Expert Witness Radhakrishnaiah Parachuru
Radhakrishnaiah Parachuru, PhD
Principal Research Scientist
719 Grayson Road
Georgia Institute of Technology, MSE
Pleasant Hill CA
94523
USA
phone: 404-894-0029(o); 404-906-5049(cell)
Chemical Expert Witness Meyer R Rosen
Meyer R. Rosen, President
CPC, CCHE, FRSC, DABFET, FAIC
Fire & Explosion Investigator (Advanced Training)
Certified Professional Chemist & Chemical Engineer
16547 Crescent Beach Way
Bonita Springs FL
34135
USA
phone: Cell: (516) 459-2050 / (239) 221-8161
Jose Villalobos Wastewater Forensic Engineering Expert Witness
Jose Villalobos, PE
Presdent
399 Haas Ave.
San Leandro CA
94577
USA
phone: 510-414-9394
Featured resources
by Randal Hill, PhD
by Kent Sasse, MD
by Les Baxter

Dr. Rolf Biernath, PhD, Chemical Engineering, University of California, Berkeley, and BChE, Georgia Institute of Technology) has over 35 years of experience in the Chemical Industry with a concentration on Polymer Science and Engineering and Material Science Fracture Mechanics. He worked in Materials and Processes at 3M for 31 years in senior technical roles developing materials, processes, and systems. His 58 US patents span a broad range of scientific and engineering disciplines.
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.
Principal, Lester P. Engel, Jr., PE, is a Metallurgical Engineer with over 40 years of experience leading the company's detailed, quality-focused testing and services. He oversees the company's lab, continually adding new equipment and techniques.
James A. Brusso, PhD, PE, has more than 20 years of experience in processing/properties of materials, materials characterization and behavior, materials specifications, mechanical testing, failure analysis, machining of materials, and laboratory design and operation. He is also Engel Metallurgical's Technical Manager and Quality Manager.
Meyer R. Rosen, FRSC, FAIC, CPC, CChE, is a leading creative consultant for the Legal Profession and specialty Chemical / Personal Care Industries. He is the Founder & President of Interactive Consulting, Inc. (
Jose Villalobos, PE, is a licensed Civil and Corrosion Engineer with over 48 years of experience in the design and condition assessment of corrosion protection systems for municipal infrastructure including Water and Wastewater Conveyance, Treatment, and Storage.
