Pumps Expert Witnesses
Pumps expert witnesses and consultants listed here may be able to form expert opinions, draft expert witness reports, provide expert witness testimony at deposition and/or trial as or serve as consulting (non-testifying) experts on pumps. The pumps expert witness listings on this page are typically from fields/areas of expertise such as: Anesthesiology, HVAC, Mechanical Engineering, Medical Devices, Pain Management - Medicine, and Products Liability.
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Tyler G Colwell, PE
Mechanical Engineer (HVAC/MEP) – Case Support
Colwell ECS, PLLC
California
Mechanical Engineering, HVAC
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HVAC Design, Data Centers, Data Center Infrastructure, Data Center Cooling, Commercial HVAC, Ventilation, Chillers, Air Handlers, HVAC Controls, Mechanical Code Compliance, Heating, Cooling Towers, Pumps, Fans, Compressors, Air Distribution, Refrigeration, hydronics, energy efficiency, economization
Three+ Decades of Technical Leadership
● 1992 (age 27) – Solo research project proving proximity transducers detect rolling-element bearing failures far earlier than accelerometers. Published in Orbit magazine; codified in API 670 & ISO 20816 for global diagnostics standards.
● 1993 – Presented Orbit research at Symposium on Industrial Applications of Gas Turbines, Canadian Gas Association, Banff, Alberta.
● 2007–2020 – Designed 100+ energy-efficient U.S. data centers, including state-of-the-art HVAC/power systems exceeding ASHRAE & Title 24.
● 2015 – Lectured/conducted vibrations lab, Cal Poly Mechanical Engineering Dept., San Luis Obispo, CA.
● 2015 – Published plain-English guide to CA Title 24-2013 data center cooling in Data Center Journal, resolving confusion and enabling compliant data center expansions.
● 2021–2025 – Designed large-scale HVAC for commercial/military facilities, exceeding IMC, UFC, & IBC for performance/efficiency.
Core Expertise
● HVAC design/construction/f...
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Eric R Mehlberg, MD
Evergreen, Colorado
Anesthesiology, Pain Management - Medicine
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Facet, MBB/RFA, epidural SI, major/minor joints and bursae, paravertebrals, peripheral nerve blocks, RFA, SCS, pumps
I am a licensed physician in the State of Colorado, Montana, Florida, New York, Wyoming, Texas. I obtained my license in 2015 when I moved to Colorado and am currently in good standing. I attended the University of Illinois for my MD and obtained my undergraduate degree at Gordon College. Following Medical School, I trained in Anesthesiology at Stanford University Medical Center and Interventional Pain Management at University of California at San Francisco. I have been in private practice since 2015. I hold specialty certificates in both Anesthesiology and Pain Management.
All basic interventional techniques under either fluoroscopy or ultrasonography (Facet, MBB/RFA, epidural [C2 and below; both interlaminar and TFESI, with the caveat that I do not do bilateral or multilevel cervical TFESI ], SI, major/minor joints and bursae, paravertebrals, peripheral nerve blocks, etc). Kyphoplasty. Platelet Rich Plasma regenerative techniques. Spinal Cord Stimulation Percutaneous Trials and I...
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Tyler G Colwell, PE
Mechanical Engineer (HVAC/MEP) – Case Support
Colwell ECS, PLLC
Reno, Nevada
Mechanical Engineering, HVAC
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HVAC Design, Data Centers, Data Center Infrastructure, Data Center Cooling, Commercial HVAC, Ventilation, Chillers, Air Handlers, HVAC Controls, Mechanical Code Compliance, Heating, Cooling Towers, Pumps, Fans, Compressors, Air Distribution, Refrigeration, hydronics, energy efficiency, economization
Three+ Decades of Technical Leadership
● 1992 (age 27) – Solo research project proving proximity transducers detect rolling-element bearing failures far earlier than accelerometers. Published in Orbit magazine; codified in API 670 & ISO 20816 for global diagnostics standards.
● 1993 – Presented Orbit research at Symposium on Industrial Applications of Gas Turbines, Canadian Gas Association, Banff, Alberta.
● 2007–2020 – Designed 100+ energy-efficient U.S. data centers, including state-of-the-art HVAC/power systems exceeding ASHRAE & Title 24.
● 2015 – Lectured/conducted vibrations lab, Cal Poly Mechanical Engineering Dept., San Luis Obispo, CA.
● 2015 – Published plain-English guide to CA Title 24-2013 data center cooling in Data Center Journal, resolving confusion and enabling compliant data center expansions.
● 2021–2025 – Designed large-scale HVAC for commercial/military facilities, exceeding IMC, UFC, & IBC for performance/efficiency.
Core Expertise
● HVAC design/construction/f...
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Karl R Leinsing, PE
Patent Litigation: Top Rated Medical Device Expert
ATech Designs, LLC
Dover, New Hampshire
Medical Devices, Mechanical Engineering
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intravenous, IV, needle-free, heart valves, mitral valve, cardiovascular, FEA, nitinol, pumps, heart valve repair, sutures, stents, hernia, staplers, fasteners, plastics, polymers, textile, injector, syringes
Five time, nationally recognized, award winning medical device engineer. One device pictured on the cover of LIFE Magazine - May 2000. Named inventor on 41 granted patents and counting. Experience in cardiovascular devices (AAA stents, mitral valve repair, heart remodeling, vascular assist), intravenous IV disposables, needle-free valves, syringes, auto injectors, pen injectors, glucose monitors, continuous glucose monitors (CGM's), pumps of all types, catheters, surgical instruments, minimally invasive instruments, e-cigarettes, CPAP, nebulizers, inhalers, RF endometrial ablation, medical textiles, knitting, weaving, percutaneous devices, endoluminal devices, hernia repair, staplers, sutures, implants, laparoscopic devices, incision closure, bone plates/screws/anchors, orthopedic surgical tools, surgical devices, tissue cutting & sealing, trachea alarm, urinary catheters & incontinence, medical grade polymers, manufacturing, prototypes, packaging, sterilization, clinical studi...
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Randall King, PhD, PE
Mech Engineer, Patents, Products Liability, Design
King Professional Engineering, Inc.
DALLAS, Texas
Mechanical Engineering, Products Liability
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Patents, products liability, machinery design, failure analysis, design defects, 15 US patents + 6 int'l patents, Oilfield, industrial accidents, pumps, valves, consumer products, mechanical equipment failures, inventorship, infringement, invalidity, manufacturing defects, piping, compressors, Agricultural accidents, Drilling
Dr. King is a licensed professional engineer with a Ph.D. in mechanical engineering: 40+ years experience in mechanical engineering, product design, research and development of high-pressure oilfield fracturing pumps and automotive components, forensic investigation, and litigation support.
▪ Testified at 11 trials & 57 depositions
▪ 25 Patent, IPR, & PGR cases – 4 trials & 12 depositions
▪ 21 Patents
▪ Patent infringement, invalidity, inventorship, claim construction
▪ Products liability
▪ Design defects & manufacturing defects
▪ Failure analysis
▪ Oilfield, Industrial, Construction, & Agricultural accidents
▪ Pumps, valves, compressors, & piping
▪ Cranes, trucks, lifts
▪ Consumer products
Dr. King has served as a forensic engineer for over 20 years, testifying at 11 trials and 57 depositions in state and federal courts for both plaintiff and defense.
Dr. King has served on 25 patent cases, providing opinions on invalidity, infringement, inventorship, I...