He implemented Taguchi's methods throughout a large multi-plant company, writing analytical software and holding in-house symposia. He promoted the "Quality Revolution" in a $100 million firm through company-wide training and individual project support from the shop floor to research and development. He directed and supported over 300 technical projects, including process improvement by untrained technicians, software fault detection and  project co-ordination optimization.

Applying his metallurgical training, Dr. Warner developed economic inspection methods for small stainless steel springs, performed failure analysis of electronic connectors at all power levels and strengthened reinforced thermoset components. He has developed new aluminum welding and brazing alloys, and directed the development of a radically new radiator design. He has consulted in the United States, England, and the Czech Republic . He taught metallurgy and advanced statistical methods at Milwaukee School of Engineering  for eleven years. Dr. Warner is also listed with Sopheon-TelTech^TM  as an expert in practical applications of experimental design and aluminum brazing.