Patents by Inventor Chhiv K. Chea

Chhiv K. Chea 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 taurine additives in enhanced oil recovery with anionic surfactants
    Patent number: 4976315
    Abstract: A method is disclosed for increasing the recovery of oil in enhanced oil recovery operations employing anionic surfactant by blending a taurine with said anionic surfactant. The taurine may also increase the salt and divalent ion tolerance of the anionic surfactant.
    Type: Grant
    Filed: November 6, 1989
    Date of Patent: December 11, 1990
    Assignee: Texaco Inc.
    Inventors: Gabriel Prukop, Chhiv K. Chea