Patents by Inventor William H. Calkins

William H. Calkins 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).

  • High temperature and high pressure reaction process and apparatus
    Patent number: 5431889
    Abstract: A process and apparatus for carrying out reactions at elevated temperatures and pressures which minimizes the heat-up and cool-down times by rapid transport of the reactants using pressurized gas through a preheater to a preheated reactor, agitating the reaction mixture and discharging the reactants with high pressure gas through a precooler.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: July 11, 1995
    Inventors: He Huang, William H. Calkins