Patents by Inventor Jean C. Gautier

Jean C. Gautier 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).

  • Microemulsion-based acid composition and its uses, particularly for cleaning operations
    Patent number: 4540448
    Abstract: Composition comprising a hydrophobic liquid, an aqueous acid solution, a surfactant agent and a cosurfactant, a microemulsion being formed between the hydrophobic liquid and the aqueous solution; the surfactant comprises one or more surface-active phosphoric esters.Applications to the cleaning of greasy surfaces, scouring, passivation and phosphatizing, such operation being effected, if desired, in a single step without preliminary degreasing.
    Type: Grant
    Filed: March 21, 1984
    Date of Patent: September 10, 1985
    Assignee: Societe Nationale Elf Aquitaine
    Inventors: Jean C. Gautier, Jacques Kamornicki