Patents by Inventor John Stephen Bass

John Stephen Bass 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).

  • Patent number: 6844474
    Abstract: The present invention provides a vapor phase process for the production of difluoromethane, HFC-32. The process of this invention provides for the preparation of HFC-32 by a process that exhibits both good product yield and selectivity.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: January 18, 2005
    Assignee: Allied Signal Inc.
    Inventors: Paul Gene Clemmer, Addison Miles Smith, Hsueh Sung Tung, John Stephen Bass
  • Patent number: 6365580
    Abstract: The present invention provides a vapor phase process for the production of difluoromethane, HFC-32. The process of this invention provides for the preparation of HFC-32 by a process that exhibits both good product yield and selectivity.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: April 2, 2002
    Assignee: AlliedSignal Inc.
    Inventors: Paul Gene Clemmer, Addison Miles Smith, Hsueh Sung Tung, John Stephen Bass
  • Patent number: 5763708
    Abstract: The present invention provides a vapor phase process for the production of difluoromethane, HFC-32. The process of this invention provides for the preparation of HFC-32 by a process that exhibits both good product yield and selectivity.
    Type: Grant
    Filed: September 20, 1995
    Date of Patent: June 9, 1998
    Assignee: Allied Signal Inc.
    Inventors: Paul Gene Clemmer, Addison Miles Smith, Hsueh Sung Tung, John Stephen Bass