Patents by Inventor Herman F. Krantz

Herman F. Krantz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Leak detection and refrigerant purging system
    Patent number: 4711096
    Abstract: A system for sensing a leak of ammonia refrigerant into a refrigerated environment and for automatically purging the refrigeration equipment within the environment of refrigerant.
    Type: Grant
    Filed: March 13, 1987
    Date of Patent: December 8, 1987
    Inventor: Herman F. Krantz