Donald Alstadt, inventor of the Chemlok® Rubber-to-Metal Adhesive System, has been inducted into the National Inventors Hall of Fame as part of its 2026 class. Alstadt, a chemist at LORD Corporation (now Parker Lord), patented this solvent-borne adhesive technology in 1956. His former schoolmate, RDAbbott’s Carl Hoglund, helped commercialize Chemlok.