Patents by Inventor Bobby R. Harmon

Bobby R. Harmon 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).

  • Use of certain materials as thinners in oil-based drilling fluids
    Patent number: 4659486
    Abstract: An additive for use with a water-in-oil emulsion type fluid to reduce the viscosity of the fluid to a desired range comprising a fatty acid polyester containing at least 300 carbon atoms.
    Type: Grant
    Filed: February 11, 1986
    Date of Patent: April 21, 1987
    Assignee: Halliburton Company
    Inventor: Bobby R. Harmon
  • Use of certain materials as thinners in oil based drilling fluids
    Patent number: 4502963
    Abstract: An additive for use with a water-in-oil emulsion type fluid to reduce the viscosity of the fluid to a desired range comprising a fatty acid polyester containing at least 300 carbon atoms.
    Type: Grant
    Filed: March 11, 1983
    Date of Patent: March 5, 1985
    Assignee: Halliburton Company
    Inventor: Bobby R. Harmon