Patents by Inventor Hemi Nae

Hemi Nae 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).

  • Oil well drilling fluids with improved anti-settling properties and methods of providing anti-settling properties to oil well drilling fluids
    Patent number: 6159906
    Abstract: An improved drilling fluid with enhanced anti-settling properties useful for oil well drilling systems is described. The invention includes a process for providing anti-settling properties to oil invert (i.e., water in oil emulsion) based fluids. The drilling fluid/drilling mud invention contains at least one copolymer reaction product of which the reactants comprise at least one ethylenically unsaturated carboxylic compound and at least one alpha-olefin. As an alternative embodiment one or more rheologically-active clays including organoclays and smectite clays in combination with such copolymer reaction product are also added to the drilling fluid. The invention also includes an anti-settling additive comprising a rheologically active clay and the above described copolymer.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: December 12, 2000
    Assignee: Rheox, Inc.
    Inventors: Keith McNally, Hemi Nae, James Gambino
  • Organoclay thickener compatible with system to be thickened
    Patent number: 6130256
    Abstract: An organophilic clay thickener for natural oil systems comprising the reaction product of a smectite-type clay and an organic cation in an amount of from about 75% to about 150% of the cation exchange capacity of the smectite-type clay. Said organophilic clay comprising at least one naturally occurring, resulting in increased efficiency as a thickener in natural oil systems.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: October 10, 2000
    Assignee: Rheox, Inc.
    Inventor: Hemi Nae