Karl R. Leinsing

Karl R. Leinsing, MSME, PE is a medical device engineering expert specializing in full life cycle medical device product development and consulting. With a career encompassing mechanical engineering, regulatory compliance, and innovative design, he brings a comprehensive framework to litigation work involving complex product development and patent disputes. His work centers on investigating patent infringement, assessing product liability, and evaluating whether industry standards were met in medical device development.

Mr. Leinsing has been retained in numerous expert witness and consulting engagements across the United States, Canada, EPO, USPTO, ITC, and Australia, involving patent and liability cases in the medical device industry. His M.S. in Mechanical Engineering from North Carolina A&T State University, along with his Professional Engineer license in NH, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving medical device design and functionality.