Patents by Inventor Jordan S. Lasher

Jordan S. Lasher 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).

  • Hydrodesulfurization apparatus with upstaged reactor zones
    Patent number: 4045182
    Abstract: A process and apparatus for the hydrodesulfurization of residual oil in a plurality of catalyst zones in series with the upstream reactor being removed periodically for a catalyst change. When an upstream zone is taken off-stream for a catalyst change, the fresh feed oil is passed to a succeeding downstream zone so that the downstream catalyst zone is upstaged to the status of an upstream catalyst zone. When a zone is returned to service after a catalyst change, it enters the process as a downstream reactor in the series.
    Type: Grant
    Filed: August 17, 1976
    Date of Patent: August 30, 1977
    Assignee: Gulf Research & Development Company
    Inventors: William S. Bonnell, Robert D. Christman, Jordan S. Lasher, John A. Paraskos, Stephen J. Yanik
  • Hydrodesulfurization process with upstaged reactor zones
    Patent number: 4017382
    Abstract: A process for the hydrodesulfurization of residual oil in a plurality of catalyst zones in series with the upstream reactor being removed periodically for a catalyst change. When an upstream zone is taken off-stream for a catalyst change, the fresh feed oil is passed to a succeeding downstream zone so that the downstream catalyst zone is upstaged to the status of an upstream catalyst zone. When a zone is returned to service after a catalyst change, it enters the process as a downstream reactor in the series.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: April 12, 1977
    Assignee: Gulf Research & Development Company
    Inventors: William S. Bonnell, Robert D. Christman, Jordan S. Lasher, John A. Paraskos, Stephen J. Yanik
  • Multiple stage hydrodesulfurization process including partial feed oil by-pass of first stage
    Patent number: 4016069
    Abstract: A multiple stage process for hydrodesulfurizing a residual oil comprising passing the oil downwardly through a plurality of stages in series with an interstage flashing step. A portion of the fresh feed oil continuously or intermittently by-passes the first stage and flows directly to the second stage.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: April 5, 1977
    Assignee: Gulf Research & Development Company
    Inventors: Robert D. Christman, Jordan S. Lasher, John A. Paraskos, Stephen J. Yanik
  • Multiple stage hydrodesulfurization process with extended downstream catalyst life
    Patent number: 4016070
    Abstract: A multiple stage process for hydrodesulfurizing a residual oil while passing the oil downwardly through a plurality of stages in series with an interstage flashing step. After the catalyst in the downstream stage is deactivated by coke deposition, fresh feed oil is passed directly to the deactivated catalyst to obtain an extended life in the downstream catalyst.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: April 5, 1977
    Assignee: Gulf Research & Development Company
    Inventors: Robert D. Christman, Jordan S. Lasher, John A. Paraskos, Stephen J. Yanik