Patents by Inventor Steven D. Cheung

Steven D. Cheung 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).

  • Gas flow distribution system
    Patent number: 5065794
    Abstract: Gas distribution system including main, lateral and loop conduits in which gas flow is continuously provided between a source of pressurized gas and venting means so that "dead space" is avoided in the distribution system and continuous real time monitoring of system gas is enabled.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: November 19, 1991
    Assignee: Union Carbide Industrial Gases Technology Corporation
    Inventor: Steven D. Cheung