Dennis Barket, Jr., Ph.D.

Dennis Barket, Jr., Ph.D.
Co-founder, President and CEO

Dr. Barket co-founded Griffin Analytical in November of 2001. Dennis has led the analytical instrumentation company from its inception through Series A financing. Dennis obtained his Ph.D. in Analytical Chemistry from Purdue University where his graduate work was funded by a NASA Graduate Research Fellowship Award. His Ph.D. research was in the area of applied mass spectrometry focusing on environmental applications. While completing his Ph.D., Dennis also completed the Applied Management Principles Program through Purdue’s Krannert School of Management, which provides scientists and engineers with a "mini-MBA" experience. Dr. Barket completed his undergraduate studies at Indiana University with a double major in Biology and Chemistry. Subsequent to his undergraduate work, Dennis joined Procter and Gamble as a Senior Research Associate where he worked in an up-stream product development team.

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Garth Patterson, Ph.D.

Garth Patterson, Ph.D.
Co-founder, Chief Technology Officer

Dr. Patterson co-founded Griffin Analytical in November of 2001.  He is currently responsible for R&D at Griffin Analytical and has served as principal investigator on multiple government contracts. He has also authored numerous patents, published his findings in a variety of scientific journals resulting in two cover articles, and has presented his research at several top technical conferences. Garth has also held an instrumental role in various collaborations, including projects with the Henry Bohn Hass Distinguished Professor of Chemistry, Dr. R. Graham Cooks of Purdue University, whom Garth completed his doctoral research with while at Purdue University.

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David M. Shelby, M.B.A.

David M. Shelby, M.B.A.
Vice President, Finance and Business Operations

David has consulted with multiple companies in the Purdue Research Park and is familiar with the issues of commercialization of innovative products. David has provided CFO and general business services to a number of established businesses in both Indiana and Illinois. Prior to his consulting work with emerging companies in the Purdue Research Park, David spent twelve years in commercial finance, which included positions in business development, trust, and commercial lending. He has consulted in Poland, Canada, and Brazil.

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Mark Gregory, M.B.A.

Mark Gregory, M.B.A.
Vice President, Product Development

Mark has more than 20 years of experience in the development and manufacture of electronic instrumentation. He has helped develop a broad range of products from cardiac pacemakers to downhole tools (oilfield instrumentation) to clinical diagnostic instruments. Mark was actively involved in the creation of two previous successful startups, and served as President of one of those firms, a medical device contract manufacturer, for more than six years. Mark received a B.S.E. (Mechanical Engineering) from the University of Michigan. He also received an M.S.E. in Bioengineering from the University of Michigan, under a National Institutes of Health Training Grant. Later in his career, Mark earned an Executive MBA from Indiana University.

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Mitch Wells, Ph.D.

Mitch Wells, Ph.D.
Vice President, Research and Development

Mitch earned a Ph.D. in analytical chemistry from Purdue University in 2000.  His Ph.D. research was conducted with the Henry Bohn Hass Distinguished Professor of Chemistry, Dr. R. Graham Cooks, and involved improving the performance and applicability of quadrupole ion trap mass spectrometers through variation of the trap electrode geometry.  He worked as a postdoctoral research associate with Prof. Scott McLuckey at Purdue University in the area of biological applications of mass spectrometry.  He has published approximately 25 research papers and reviews, given numerous poster and oral presentations at scientific conferences, and is a joint holder of numerous patents concerning CIT technology.

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Don Granitz

Don Granitz
Vice President, Production

Don has over 18 years of experience in the defense industry with focus in high-tech manufacturing and production. After earning a B.S. in Physics from Taylor Univeristy, Don went on to gain work experience in the areas of implementing human capital management, planning and completing facilities expansion, supply chain management, company wide ISO and quality systems creation. Prior to joining Griffin, Don spent six years as the Plant Manager at CTS Corporation.

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Brent Rardin

Brent Rardin
Director, Engineering

Brent earned a Bachelor of Science degree in Computer Science from the University of Illinois at Urbana-Champaign in 1985, and since that time has amassed a wide range of experience in software engineering, from requirements specification and analysis through algorithm definition to final coding and implementation. He also has extensive software project management experience.

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