Prior to joining ClearSign in 2012, Dr. Ruiz served as the President and Chief Operating Officer of OnQuest, Inc., a division of Primoris Services Corporation, and a provider of engineering, procurement and construction services for fired heaters primarily in refinery applications, waste heat recovery units and LNG, hydrogen, ammonia and bio-fuels plants. Previously, he served as Vice President of the Process Burners Group at John Zink Company LLC where he had full operating and P&L responsibility for the company’s original product line. His customers included most major domestic and international oil companies and OEMs. As an executive manager, Dr. Ruiz formed and led highly successful teams of engineers, process engineers, project managers, and aftermarket sales and field service professionals. He had previously been VP Technology and Commercial Development at Zink where he was responsible for all R&D as well as the management of the company’s intellectual property portfolio. Prior to joining John Zink Company in 1997, Dr. Ruiz worked with the Gas Research Institute and later with Air Liquide, where he was commercial and marketing manager in the Glass Group. Dr. Ruiz served as a Director of Arvest Bank. Dr. Ruiz received a BSc. in Engineering from the University of California, Los Angeles, an MSc. in Mechanical Engineering from the University of Minnesota, a Ph.D. in Mechanical Engineering from the University of Minnesota, and an M.B.A. from the University of Chicago.  

 Mechanical Engineering