Design Engineering Expert Witnesses: 32

Harvey C. Voris’ entire engineering career has been devoted to the Fitness Industry. He has over 35 years of Fitness Equipment Design experience and has been issued 7 U.S. utility patents. Mr. Voris has a Bachelors of Science in Engineering from UCLA with a specialization in Bio Structural Mechanics. 

Mr. Voris' Masters in Engineering is from Cal State Long Beach where he specialized in Fatigue and Failure Analysis. He has spent 21 years devoted to the development and promotion of safety standards for the fitness industry. Mr. Voris has authored numerous standards and has chaired the ASTM committee devoted to fitness standards development since 1995. 

Litigation Support - Mr. Voris provides engineering analysis and accident reconstruction related to consumer and fitness products and facilities. His services are available to attorneys representing both plaintiff and defense. With 35 years of experience, a biomechanics background, and extensive experience in design and product testing, Mr. Voris speaks with authority on the following critical issues:

Product Liability - Patent Development - Patent Infringement - Facility Risk Management - Standards Compliance

View Harvey Voris' Consulting Profile.

John Hatcher is an industry leader in Building Systems Engineering including, Information Technology, Audio Visual, Security, Building Automation Systems, Fire Alarm Systems, Intelligent Building Concepts and Commissioning. He has worked on some of the most prestigious facilities in the world including the Americas, Europe, Middle East, Russia, India and Southeast Asia. 

Dennis E. Wilson has over forty years of experience in Land Planning, Civil Engineering, and Land Surveying. His company, Horizon Consulting Service, specializes in Entitlements, In-Fill Projects, Civil Engineering, and Land Planning and Design for commercial, industrial and residential properties. Mr. Wilson works on both private and governmental projects. As an Expert Witness, Mr. Wilson has participated in property line disputes, condemnation resolutions and land use issues. 

Professional Memberships:

• American Planning Association
• Past Chair of Land Use Committee, National Association of Home Builders
• Past Chair Land Use & Government Affairs, California Building Industry Association
• Past Chair of BIACC PAC
• Past Chair/Current Member on Land Use & Transportation Committee, Modesto Chamber of Commerce

Philip J. Isaak, PE, P.Eng., DCDC, RCDD, SMIEEE, is an expert witness, consultant & trainer in the design, construction, procurement, implementation, commissioning & operations of Information Technology, Telecommunications & Critical Data Center Facilities. 

Mr. Isaak provides clear analysis for complex disputes, incorporating industry standards, best-practices and over 20 years of consulting & training expertise working with clients located in 28 countries and territories across 6 continents. 

In recognition of Mr. Isaak’s professional standing, the Institute of Electrical & Electronic Engineers (IEEE), the world’s largest professional association for advancement of technology, certified him to the grade of Senior Member, a level only 9% of IEEE’s over 400,000 global members hold. Mr. Isaak is also an author of several industry standards published by TIA & ANSI/BICSI, whitepapers published by The Green Grid, and the Data Center Handbook published by John Wiley & Sons.

Expert Witness Services

Areas of Expertise:

View Philip Isaak's Consulting Profile.

Karl L. Linck, PE, is an expert in Food Industry Production and Packaging with over 45 years of experience. A Professional Engineer in WI, IL, AZ, CA, FL, and ID, his main area of experience is with Sanitary Systems and their Design in Hygienic Food Processing. 

Litigation Support -  Along with design of many food processing / packaging systems and engineering department development and leadership, Mr. Linck has provided expert witness testimony for cases involving IP and Contract issues. His services are available to attorneys representing plaintiff and defendant and include site inspection, thorough reporting, depositions, and trial testimony as needed. 

Areas of Expertise:

 Background Experience - Much of Mr. Linck's career has focused around dry, oils, refrigerated and frozen products in the pasta, natural cheese, processed cheese, appetizer, and entrée areas. He has led strategic growth of engineering functions, including procurement and customization of production equipment, production line layouts and facilities design, automation, packaging material engineering, site selection, and support engineering functions for all production operations and distribution/office needs.  

From 1992 to 2019, Mr. Linck served as Vice President of Engineering for Sargento Foods, Inc., where he provided key technical direction and management critical to growth and assembled the engineering department to support innovation, improvements, and production support with proper engineering/technician skill sets, among other duties.

Mr. Linck is currently the sole proprietor and engineer for Karl Linck, Technical Consulting, where he specializes in engineering educational material development, manufacturing consulting, expert witness work, and expert advice for the food industry.

Rudolph P. Frizzi, PE, GE, D.GE is a Civil Engineer with over 25 years of extensive practical Foundation and Geotechnical Engineering experience. Mr. Frizzi has extensive project management experience throughout the United States and internationally, with particular emphasis on:

• Foundation Design and Construction in Urban Areas
• Large Scale Land and Waterfront Public and Private Development Projects

Mr. Frizzi has obtained extensive field, office supervision, and project management experience including soil and rock sampling and in-situ testing; monitoring pre , during, and post-construction with state-of-the-art geotechnical instrumentation; nondestructive testing; aqueous and sub-aqueous inspections and investigations; and heavy construction which has contributed to his practical approach to geotechnical problem solving. In addition to his "engineer of record" experience, Mr. Frizzi has provided expert geotechnical consultation and trial testimony on over 50 excavation and foundation litigation cases throughout the United States and internationally. His services are available to attorneys for Plaintiff and Defense.

Areas of Forensic Expertise:

• Foundations for Stadiums, Arenas, High-Rise Structures in Urban Areas
• Embankment and Dam Stability
• Large-scale Land and Waterfront / Marine Structures and Development
• Shallow and Deep Foundation Systems
• Soft and Hard Rock Treatment
• Earthwork
• Ground Improvement of Waste Fills
• Temporary and Permanent Lateral Support Systems for Deep Excavations
• Geotechnical Instrumentation and Vibration Monitoring
• Construction Dewatering

View Rudolph Frizzi's Consulting Profile.

Dr. Tringale provides environmental consulting and expert witness services to a diverse group of public and private sector clients throughout the United States both directly and through legal counsel. His experience includes contaminated soil and groundwater issues; Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) remedial investigations and feasibility studies; cost estimating and allocation; soil and groundwater remediation and redevelopment; and third-party review and strategic consulting. As a testifying expert and litigation consultant, Dr. Tringale has given testimony at trial in state and federal courts. His opinions have related to compliance with the National Contingency Plan, identification of contaminant sources, assessment of magnitude and extent of contamination, evaluation of remediation programs, review and development of remedial cost estimates, and allocation of cost and responsibility.

Dr. Tringale has been providing litigation support services to the legal industry for over 25 years. He is available to attorneys for Plaintiff and Defense. Dr. Tringale has been retained more than 25 times and has provided expert testimony in support of counsel for cases involving:

• National Contingency Plan Compliance
• Identification of Contaminant Sources
• Magnitude and Extent of Contamination
• Remedial Cost Estimates
• Allocation of Cost and Responsibility

View Philip Tringale's Consulting Profile.

Peter Howell, PE, CSP, CFEI, FAIChE  has almost 50 years of experience in the Design, Operation, Maintenance and Management of Chemical and Petrochemical Facilities with positions such as process engineer, project engineer, maintenance foreman, technical manager, engineering manager, plant manager and vice president and general manager.

Mr. Howell has investigated approximately 125 incidents that occurred in chemical plants, refineries, pulp and paper mills and similar industries for attorneys, insurance companies and regulatory agencies. He has determined the root causes using methodologies consistent with NFPA 921, Center for Chemical Process Safety, United Steel Workers, and the National Safety Council.  The root causes determined were based on the evidence, Recognized and Generally Accepted Good Engineering Practices and federal regulations.

Mr. Howell has extensive experience in developing, implementing and auditing the elements of OSHA's process safety management (PSM) regulation and EPA's risk management plan (RMP). He also has extensive experience in accident and incident investigations involving fire, explosion, and release of toxic and hazardous materials.  He He frequently serves as an expert witness and provides litigation support.

Areas of Expertise:

Mayotte Design & Engineering, PC (MD&E) is a Civil and Environmental Engineering Design Firm based in East Lansing, Michigan.  Since 2003, MD&E has proved itself a highly responsive design, advocate and risk management partner for clients in the energy, automotive, commercial printing, textile, pharmaceutical, chemical, real estate, and legal industries.  MD&E offers a variety of services, specializing in the design and engineering of treatment solutions for wastewater, groundwater, stormwater and contaminated soil, sediment, and air.

MD&E personnel assist clientele across the US and have completed projects in: Alabama; Arizona; California; Colorado; Connecticut; Illinois; Indiana; Iowa; Kansas, Massachusetts; Michigan; Missouri, Mississippi; Nevada; New Jersey; New York; Ohio; Oregon; Tennessee; Texas; Vermont; Virginia; West Virginia; Washington, Wisconsin; Wyoming; British Columbia; Ontario; Quebec; Brazil; China; Czech Republic; Italy; and Mexico.

Timothy J. Mayotte, PhD, CPG, PE, President at MD&E, is an Environmental Engineer with over 35 years of experience in his field. He has provided litigation support and served as an expert witness on over a dozen cases dating back to the mid-1980s. Dr. Mayotte's experience includes providing testimony during numerous depositions and in open court. He has offered expertise in the following areas:

• Hydrodynamics of natural and engineered systems.
• Contaminant fate and transport in the environment.
• Biological and physicochemical process design for the treatment/remediation of water, wastewater, soil, and sludge.
• Industrial wastewater treatment.
• Management and inspection of commercial and residential construction and demolition projects, including due diligence services for property transactions.

Mari S. Truman, PE, has more than 40 years of experience in Orthopedic Product Design and Development. As Principal Engineer with her company, Orthobiomech, LLC, she acts as an R&D design and development consultant to the orthopaedic industry and an injury biomechanics and medical device forensic expert. Ms. Truman's design experience includes implants and instrumentation systems used to repair fractured bones, torn ligaments and/or to reconstruct spine, knee, wrist, hip, ankle, elbow, thumb based cmc, and other finger and toe joints for many of the USA based orthopaedic conglomerates and a few Asian, Australian and European firms. Having designed and developed implants and instruments used for both human joint reconstruction and skeletal trauma repair, Ms. Truman is named on 12 Orthopaedic Patents and frequently gives talks on implant design and injury biomechanics on topics such as: knee and thumb-based joint surfaces and kinematics, joint design, rapid prototyping, medical device design control, and injury biomechanics. Litigation Support - Ms. Truman has been providing Forensic Impact and Injury Biomechanics and Orthopedic Biomechanics to the legal industry for over 15 years. She draws on her strong knowledge of FDA and ISO EN13485 compliant design control processes, failure modes and effects analysis, clinically relevant tissue loading, and design safety assurance, including device performance requirements and warnings, during her medical device litigation reviews. Ms. Truman has a strong knowledge of the production and quality assurance processes used in the manufacture, cleaning, and sterilization of medical devices and the effects of such processes on product performance. Analysis of Traumatic Injuries Related To:

View OrthoBioMech LLC's Consulting Profile.

Quality Forensic Engineering, LLC is a full-service forensic engineering firm, providing engineering support to clients in the areas of accident reconstruction, biomechanics, fire investigations, patent litigation analysis, premises liability, product liability, and tire failure analysis. We use the latest technology and industry proven techniques to provide thorough analysis and conclusions for the most difficult engineering questions. Our forensic engineers support clients throughout the U.S. Headquartered in Tallahassee, FL, we have locations in Jacksonville, FL; Melbourne, FL; Tampa, FL; Indianapolis, IN; New Orleans, LA; San Diego, CA; Charlotte, NC; Columbia, SC; and Tucson, AZ.

Dr. Brian Pfeifer, PhD, PE - Dr. Pfeifer is an Engineering Expert with over 25 years of experience investigating thousands of cases involving a variety of forensic engineering issues. He is a leading expert in accident reconstruction, roadside safety, maintenance of traffic, commercial vehicle accidents, pedestrian accidents, bicycle accidents, and the analysis of mechanical systems and product failures. Dr. Pfeifer has a strong background in the design, development, and implementation of roadside safety hardware including guardrails, bridge rails, and crash cushions. Over 33 patents have been filed worldwide on behalf of Dr. Pfeifer and associated colleagues who invented safer guardrail systems, vehicle storage systems, shipping container handling systems, and material handling and storage methods. He has also utilized his technical knowledge and understanding of patents to assist in a number of matters involving patent litigation.

Dr. Pfeifer has published numerous papers to various organizations, covering topics such as new guardrail systems, energy absorbing guardrail terminals, breakaway sign mechanisms, and material handling technology. He has shared his expertise with many organizations on topics including vehicle collisions, bicycle accidents, roadway construction zones, and accident reconstruction expert witness utilization. Dr. Pfeifer is a registered Professional Engineer in nine states and he continues to refine his skills and knowledge of accident reconstruction and roadside safety by staying current with new technology and best practices. Dr. Pfeifer has extensive experience with providing deposition and trial testimony as an Engineering Expert. See Full Bio & CV.

Expertise:

Dr. Ian M. Zeller, PhD, ACTAR, is an accomplished engineer with more than 10 years of experience in Biomechanics and Computational Dynamics fields. He has investigated hundreds of cases ranging from motor vehicle accidents, recreational incidents, medical device designs, as well as injuries from product liability all across the United States. 

Dr. Zeller has graduate level experience in computational dynamics and orthopedic biomechanics with a specific emphasis in dynamics, vibrations, joint contact mechanics, and muscle control during static and dynamic loading applications. Dr. Zeller’s past research includes clinical and computational analysis of the human body with respect to the design and implantation of orthopedic devices for the knee, hip, and spine. He has published in peer-reviewed journals and presented research at both technical and surgical conferences in North America, Europe, and Asia. Dr. Zeller also worked with surgeons across the United States in the design and assessment of knee replacement devices, including personalized and prototype devices to optimize for efficacy and safety. 

Dr. Zeller is also accredited as a traffic accident reconstructionist and continues to conduct research as well as maintain a current knowledge of developing trends and best practices in the biomechanics and engineering fields. Dr. Zeller has published to various organizations on topics ranging from knee replacement design, forward solution modeling, joint mechanics, personalized joint replacements, material structures and properties as well as biological modeling of disease distributions. He also has an extensive testifying history including depositions, trials, and arbitrations.

 See Full Bio & CV.

Expertise:

Michael R. Hill, PhD, PE, is a Biomechanical Engineer passionate about applying biomechanics techniques to solve diverse problems in forensics, medical research, engineering, biology, science, and mathematics. He is an expert in experimental, theoretical, and computational Tissue Biomechanics, with a focus on injury mechanisms, human tissue damage, and nonlinear soft tissue mechanics.

Dr. Hill’s core strengths are in orthopedic and cardiovascular biomechanics, vehicle accident reconstruction, injury consistency analysis, mechanical design, instrumentation, experimental analysis, numerical methods, simulation, statistics, and image processing. Dr. Hill has lectured in the field of biomechanics and numerical methods, and his research has been published in 16 academic articles and presented at 40 international and national scientific conferences.

See Full Bio & CV.

Expertise:

View Quality Forensic Engineering's Industrial Forensic Engineering Expert Witness Profile.

R. Kevin Smith PE, BSME, MMAE, has been a specialist in Engineering Forensic Safety and Design for 35 years. He has consulted on over a 1,000 matters nationwide. Mr. Smith is a registered professional engineer and holds a BSME and MMAE from the Illinois Institute of Technology in Chicago. He is board certified forensic engineer through the National Academy of Forensic Engineers. He specializes in Material Handling Equipment Safety, including lift trucks, dock safety, truck loading, conveyors, and aerial work platform safety. Mr. has been actively involved as a member of the committee that writes the Safety Standard for Low Lift and High Lift Trucks (ASME/ANSI B56.1) for over 30 years. He also serves on the B56.6 committee (rough terrain lift trucks) and the ANSI A92.5 and A92.6 subcommittees (self-propelled elevating work platforms). Litigation Support - Mr. Smith formerly worked for Triodyne, Inc. for over 15 years as a forensic engineer/principal engineer. As President of R. K. Smith Engineering Inc., for over 25 years, he currently has a laboratory for examination and testing, and owns or has access to varied testing equipment and tools. Kevin Smith has testified at depositions and trials on several hundred matters. He has performed hundreds of investigations into product failures involving injury and property damage, and has reconstructed numerous accidents. His expertise is available to counsel representing both Plaintiff and Defendant. Mr. Smith also was previously on the Adjunct Math faculty at Prairie State College for 13 years. Areas of Expertise:

View R. Kevin Smith's Consulting Profile.

Robert O. Peruzzi, PhD, PE, DFE is a Licensed Professional Electrical Engineer with a focus on electronic and electro-mechanical systems and mixed-signal integrated circuits (silicon chips). He provides expert witness services to both plaintiff and defense counsel in matters regarding intellectual property, patents, failure analysis, product liability, injuries, and product specifications. Areas of expertise include:

View Consulting Profile.

Mark E. Rieser, II, MS, PE, AIA, GBC, GEC has over 30 years of experience in the Engineering, Architectural, Construction, and Building Design industry. He provides his clients with a comprehensive knowledge of Engineering, Construction Technology and Construction Standards of Professional Practice. 

Background Experience - President of an “active” Design and Building company with a professional staff and Headquarter offices in San Jose and Los Angeles, and offices in Sacramento and San Francisco. Mr. Rieser has managed, designed, and constructed over 4,000 units to include high-rise, single family homes, condominiums, townhomes, podiums, apartments, and commercial buildings, His experience includes building and roadway design, construction, management, with designs of over 500 miles of asphalt and roadway improvements, tunnels, San Francisco Airport, Santa Clara Light Rail, Southern Pacific Railroad, Caltrans, and BART. 

Mr. Rieser has an insightful understanding of Civil / Structural Engineering, Soil Engineering, Transportation, Traffic Engineering, Hydraulic Engineering, Safety Expert, OSHA Standards, Architectural Design, Asphalt Design, Cost Estimation, Public Works Design Bidding and Estimation, General Engineering, General Building, and an Accident Reconstruction expert. “Our bids are not just a tool but are numbers that we be use to finish the work, accurately, on-time, and safely.” 

Forensic Construction and Engineering - Mark Rieser is a renowned forensic expert with the knowledge to safeguard clients from unwanted litigation as well as support both plaintiffs and defendants. He works closely with insurance companies and attorneys on various public, city, and state cases throughout the western United States. To date, he has been designated as an expert in over 550 Forensic Construction and Engineering cases throughout the United States. Mr. Rieser has been designated and testified Court as an expert in the following categories:

View Mark Rieser's Consulting Profile.

Christopher M. Daft, PhD, is an award winning, Oxford Educated scientist whose areas of expertise include medical imaging, artificial intelligence, semiconductors, medical devices, sensors, MEMS, signal processing, and image processing. He holds 23 United States Patents with 20 applications pending, Dr. Daft has diverse industry experience including multi-nationals such as GE, Medtronic, Fujifilm, Samsung, and Siemens as well as several start-ups. 

He has testified at trial 5 times and been deposed 14 times.

Dr. Daft has been an Institute of Electrical and Electronic Engineers (IEEE) Senior Member since 2004. He has three years of experience teaching electrical and computer engineering at the University of Illinois. 

Dr. Daft holds a BA and MA in Physics from Oxford University as well as Doctorate from Oxford in Materials Science.

Litigation Support - Dr. Daft provides litigation support in the areas of Intellectual Property and Medical Devices including Imaging, particularly Medical, Patents, and more. His experience includes a variety of cases in the areas of wearable electronics, imaging systems, and surgical technology. Dr. Daft has extensive deposition and trial testimony experience.

Areas of Expertise:

View Dr. Christopher Daft's Consulting Profile.