Prom 1944 to 1945, Dr. Mabis worked on the Manhattan Project at Columbia University. From 1947 until his retirement in 1980 he worked for Procter & Gamble at the Miami Valley Laboratories. He began his career as a Research Chemist and concluded his career as a Section Head. His research interests involved x-ray crystallography, x-ray spectroscopy, structure and properties of liquid crystals, structure of triglycerides, x-ray analytical methods, optical and electron microscopy. He worked as the manager of x-ray crystallography, microscopy and ESCA groups. He also spent eight years as Manager of Ph. D. Recruiting.
Dr. Mabis has been a member of ACS since 1945. He served as Section Editor for Chemical Abstracts, Crystallography Section in 1955 and 1965. He was a member of the Editorial Board of Advances in Liquid Crystals from 1975 to 1987. He served as a member of the Board of Regents at Capital University from 1971-1983.