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Expertise Description

I have more than 45 years experience in glass science. My expertise includes spontaneous glass breakage from NiS stones, glass forensics, ballistics, residual stress analysis and fractology analysis, glass injury issues, product liability for glass doors, glass shower enclosures, glass storm doors, vases, building codes, American Society for Testing and Materials (ASTM) / American National Standards Institute (ANSI) standards, glass quality issues, glass strength measurement, insulated glass failures, Ring-on-Ring and 4 point strength testing, ballistics testing, and uses of strain gauges. I have over 5 years expert witness experience with consultations, deposition, and courtroom testimony.

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Expert Witness

My expert witness experience includes: glass product liability – spontaneous breakage of tempered plate glass, tempered glass shower doors, bare edge shower, and bath room doors, architectural laminated glass, and balcony enclosures; beer bottles breaking during filling and capping processes; personal injury – spontaneous breakage of cold milk jug, beer bottles, flower and candle vases, beverage and food sauce bottles, glass table tops, red wine vessel, and commercial plate glass patio doors; injuries from exterior and storm door glass and panels and fire door wire glass breakage from human impact; commercial, industrial, and residential building glass damage issues such as delamination, scratched and gouged windows resulting from improper cleaning or mishandling and from hurricanes; fatality – exploding fire place glass; fatality, a glass display counter bar, a hit and run, identification of the sources of broken glass in a van and get-away car.

Consulting Experience

My consulting services include: Conduct of Research and Development and process optimization in most aspects of glass manufacture, glass chemistry, and glass properties; Identification of additives to the glass batch that virtually eliminated spontaneous glass breakage of fully tempered (safety) glass.

Relevant Experiences

I am an expert in glass fracture and would be able to characterize the fracture and to determine the breaking stress of the glass fracture and to determine if the glass objects were properly packaged.

I have recently served as an expert in another case against a manufacturer of bathroom products. I was employed by a glass development technology company for 40 years. I am very knowledgeable in tempered glass technology.


Ph.D.Material ScienceRensselaer Polytechnic Institute in Troy
Masters of ScienceCeramic EngineeringUniversity of Illinois
Bachelor of ScienceCeramic EngineeringUniversity of Illinois

Licenses Certifications

Awards & Affiliation

Named to Who's Who in Technology
PPG Recognition of Excellence Award
Named to Madison's Who's Who

Primary Affiliation

American Ceramic Society

Partial List of Consulting Expert Witness Cases