Plastics and Polymers Engineering Expert Witnesses: 3

• Expert Witness
• Analytical Instrumentation Adaptation to Processing Equipment
• Friction Analysis
• Melt Rheology
• Extrusion Equipment: Design & Analysis of Production
• Telecommunication Cables and Insulation
• Power Cables and Testing XLDPE
• All phases of PVC Compounding & Extrusion
• Thermal Stability of Polymers
• Surface Chemistry, Metals & Polymers

Robert C. Hoffman Jr, PE, CFEI, is a licensed Professional Engineer certified as a Fire and Explosion Investigator. With 30 years of experience, the primary focus of his knowledge is a deep understanding and application of all aspects of Product Safety for the Consumer Goods Industry.

Background Experience: For 27 years, Mr. Hoffman worked with the Whirlpool Corporation in various roles. He served the company as a Drum Sub-System Design/Development Engineer, a Laundry Product Approval Engineer, and Dryer Platform Structures Sub-System Leader and Engineer. His final position with the company before retirement was Principal Engineer, a position he served in for 8 years. 

Mr. Hoffman's primary areas of specialization are Heat / Combustion Containment strategies, and Electrical System Design strategies in expected customer abnormal use.  His involvement in field investigation evaluations and product liability support allow him to understand how products react in the field and produce both relevance safety tests and design solutions.

Litigation Support: Mr. Hoffman works as an expert witness with clients needing to understand if a product in the field has some type of design or manufacturing defect, as well as clients needing support to defend their product against a potential field hazard allegation. His background in statistics and presentation of data allows him to take complex situations and break the information down into simple, yet accurate assessments of the situation.

Mr. Hoffman's services include product failure mode and effects analysis, root cause investigations, thorough reporting, depositions, and trial testimony as needed.

Areas of Expertise:

View Robert C. Hoffman's Consulting Profile.

Karl R. Leinsing, MSME, PE, President of ATech Designs, Inc., is a Professional Mechanical Engineer who specializes in Medical Device Product Development from concept to production. Mr. Leinsing has been granted over 34 patents (needle free IV valves, laparoscopic devices, needlescopic devices, suture lockers, catheters, mitral valve repair devices, knitting machines) and excels in solving the most complicated problems and design challenges. His company has a fully equipped medical lab with calibrated measurement and test equipment and all is fully documented with high quality reports with pictures and video to provide credible results and easy to understand compelling data.

The winner of five design awards, Mr. Leinsing is recognized as one of the top 100 medical device professionals in the nation by MD&DI. For dedication to his industry, he was made the 2014 Chairman of the Medical Device and Manufacturing Conference in Anaheim, CA. Mr. Leinsing has also been acknowledged for his work in a publication by Life Magazine. Mr. Leinsing offers litigation support services to the legal community. He has extensive experience with Patent and Product Liability cases including report writing, depositions, and testimony.

Areas of Expertise:

View Karl Leinsing's Consulting Profile.