Patents by Inventor Larry E. Guffee

Larry E. Guffee 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).

  • Integrated blending control system
    Patent number: 4850750
    Abstract: An integrated control system, specifically transportable on water between offshore wells, includes mixing and blending subsystems, a pumping subsystem, a proppant subsystem and a control subsystem for controlling the other subsystems in a unified manner from a common control location.
    Type: Grant
    Filed: September 16, 1987
    Date of Patent: July 25, 1989
    Assignee: Halliburton Company
    Inventors: Randall B. Cogbill, Timothy J. Dodd, Paul W. Heilman, Daryl L. Heronemus, Leslie R. Sears, Leslie N. Berryman, Robert L. Baker, Larry E. Guffee, David A. Prucha, Don M. Roberts, Elbert L. Shackelford, Calvin L. Stegemoeller, Lonnie R. Walker
  • Transportable integrated blending system
    Patent number: 4715721
    Abstract: An integrated blending system comprises a mixing subsystem and a particulate material conveying subsystem which introduce materials into a blender subsystem for producing a blend which is pumped into a well through a pumping subsystem. The subsystems are mounted on a single transportation vehicle at fixed relative positions to each other.
    Type: Grant
    Filed: July 19, 1985
    Date of Patent: December 29, 1987
    Assignee: Halliburton Company
    Inventors: Lonnie R. Walker, Leslie N. Berryman, Larry E. Guffee, David E. Ripley, David A. Prucha