Robert A. Ruehrwein; Researcher in Optoelectronics

Article excerpt

Robert A. Ruehrwein, a former Monsanto researcher and a pioneer in the scientific community that helped launch the commercial solid-state optoelectronics industry, died Friday (March 10, 1995) of cancer at St. Luke's Hospital in west St. Louis County. He was 79 and lived in Chesterfield.

A native of Montana, Mr. Ruehrwein received an undergraduate degree in chemistry in 1936 from Montana State University, and in 1939, received a doctorate in physical chemistry from the University of California at Berkeley.

From 1939 to 1941, Mr. Ruehrwein was a research assistant at the California Institute of Technology in Pasadena. During World War II, he was research supervisor of the National Defense Research Committee at Carnegie Institute of Technology in Pittsburgh and at Monsanto in Dayton, Ohio. In the latter position, he played a major role in developing high-thrust, solid-fuel rockets for which a manufacturing line was established in the Department of Defense.

Mr. Ruehrwein spent the next 28 years in research and development with Monsanto. …