Patents by Inventor Israel M. Brandt

Israel M. Brandt 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).

  • Invert emulsion well-servicing fluids
    Patent number: 4306980
    Abstract: A water-in-oil well servicing fluid comprising a continuous oleaginous phase, an aqueous phase, an oleophilic anhydride and lime, and a method of preparing same.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: December 22, 1981
    Assignee: NL Industries, Inc.
    Inventors: Israel M. Brandt, Forest A. Scearce
  • Thermal insulation method
    Patent number: 4258791
    Abstract: A method of insulating a well bore with a pumpable, oil base packer fluid which gels to a thick grease-like consistency at elevated temperatures, the packer fluid comprising a liquid oleaginous phase, an aqueous phase, an oleophilic polymer such as a copolymer of maleic anhydride and a long chain alpha-olefin, a water-in-oil emulsifier and lime.
    Type: Grant
    Filed: January 29, 1980
    Date of Patent: March 31, 1981
    Assignee: NL Industries, Inc.
    Inventors: Israel M. Brandt, Forrest A. Scearce