Patents by Inventor William F. Hesseler

William F. Hesseler 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).

  • Bituminous composition
    Patent number: 4168179
    Abstract: Asbestos-free bituminous composition comprising 1-3 wt% high-structure carbon black and 1 to 25 wt% expanded perlite dispersed in asphalt cutback. The composition also contains 0.5 to 5 wt% water.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: September 18, 1979
    Assignee: GAF Corporation
    Inventor: William F. Hesseler
  • Asbestos-free bituminous composition
    Patent number: 4168178
    Abstract: Asbestos-free bituminous composition comprising 3-12 wt% high structure carbon black dispersed in asphalt cutback.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: September 18, 1979
    Assignee: GAF Corporation
    Inventor: William F. Hesseler