Patents by Inventor Emil E. Hrivnak

Emil E. Hrivnak 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).

  • Compressed natural gas dispensing system
    Patent number: 4527600
    Abstract: A system and method for dispensing compressed gas from a storage tank is disclosed in which the temperature and pressure in the tank is measured before and after the dispensing cycle and electric signals representative of these values are applied to a processor/computer which is programmed to compute from these signals the volume of gas dispensed.
    Type: Grant
    Filed: March 18, 1983
    Date of Patent: July 9, 1985
    Assignee: Rockwell International Corporation
    Inventors: Harry W. Fisher, Emil E. Hrivnak