Dr. Engel has more than 20 years of industrial experience in a variety of areas of process optimization, chemical engineering and materials chemistry. David is the inventor in 21 United States Invention Patents and author of over 100+ technical papers, scientific papers, and conferences. David has worked in several technical and business capacities for companies such as Eastman Kodak, Eli Lilly, General Electric among others. David has specialized in process improvement, sustainability and new technology development. David is currently CEO & Managing Director of Nexo Solutions. He holds a B.S. in Chemistry and also a Ph.D. in Organic Chemistry. David is 6-Sigma, Project Management and Quality Technician certified. David is currently a committee member for the American Filtration & Separations Society for the Southwest US Region, committee member for​ Gas Processing Association (GPA) Technical Section M and member of the advisory board of Gas Processing & LNG Magazine and International Refining and Petrochemical Conference (IRPC).