Patents by Inventor Fred W. Lam

Fred W. Lam 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).

  • Upflow reactor system with layered catalyst bed for hydrotreating heavy feedstocks
    Patent number: 6554994
    Abstract: A reactor system and process for hydrotreating a heavy feedstock contaminated with metals sulfur and carbon residue using an upflow fixed bed reactor with at least two catalyst layers having different hydrogenation activity.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: April 29, 2003
    Assignee: Chevron U.S.A. Inc.
    Inventors: Bruce E. Reynolds, Fred W. Lam, Julie Chabot, Fernando J. Antezana, Robert Bachtel, Kirk R. Gibson, Richard Threlkel, Pak C. Leung