Patents by Inventor Edna B. Hicks

Edna B. Hicks 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).

  • Mixed phase front end C.sub.2 acetylene hydrogenation
    Patent number: 5414170
    Abstract: The present invention provides an improved process for selectively hydrogenating acetylenes in an olefin plant process stream by selectively hydrogenating the acetylenes downstream of a front end depropanizer and upstream of further separation zones such as a demethanizer and/or de-ethanizer.
    Type: Grant
    Filed: May 12, 1993
    Date of Patent: May 9, 1995
    Assignee: Stone & Webster Engineering Corporation
    Inventors: Richard H. McCue, Edna B. Hicks