Patents by Inventor Monique Laudon

Monique Laudon 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).

  • Quaternary diaminobenzoquinones
    Patent number: 4260749
    Abstract: 2,5-diamino-1,4-benzoquinones are used in the production of hair dye compositions and can be prepared by condensing a corresponding 3-amino-4-methoxy phenol derivative on one of a corresponding hydroxy aniline or phenylenediamine derivative, a corresponding benzoquinone imine derivative or a corresponding nitroso derivative.
    Type: Grant
    Filed: May 9, 1980
    Date of Patent: April 7, 1981
    Assignee: L'Oreal
    Inventors: Andree Bugaut, Monique Laudon
  • Diaminobenzoquinones
    Patent number: 4204059
    Abstract: 2,5-diamino-1,4-benzoquinones are used in the production of hair dye compositions and can be prepared by condensing a corresponding 3-amino-4-methoxy phenol derivative on one of a corresponding hydroxy aniline or phenylenediamine derivative, a corresponding benzoquinone imine derivative or a corresponding nitroso derivative.
    Type: Grant
    Filed: December 21, 1977
    Date of Patent: May 20, 1980
    Assignee: L'Oreal
    Inventors: Andree Bugaut, Monique Laudon
  • Diaminobenzoquinones
    Patent number: 4084052
    Abstract: 2,5-DIAMINO-1,4-BENZOQUINONES ARE USED IN THE PRODUCTION OF HAIR DYE COMPOSITIONS AND CAN BE PREPARED BY CONDENSING A CORRESPONDING 3-AMINO-4-METHOXY PHENOL DERIVATIVE ON ONE OF A CORRESPONDING HYDROXY ANILINE OR PHENYLENEDIAMINE DERIVATIVE, A CORRESPONDING BENZOQUINONE IMINE DERIVATIVE OR A CORRESPONDING NITROSO DERIVATIVE.
    Type: Grant
    Filed: January 25, 1977
    Date of Patent: April 11, 1978
    Assignee: L'Oreal
    Inventors: Andree Bugaut, Monique Laudon
  • Diaminobenzoquinones in hair dye compositions
    Patent number: 4023926
    Abstract: 2,5-Diamino-1,4-benzoquinones are used in hair dye compositions.
    Type: Grant
    Filed: July 31, 1975
    Date of Patent: May 17, 1977
    Assignee: Societe Anonyme dite: L'Oreal
    Inventors: Andree Bugaut, Monique Laudon
  • Dye composition for keratinic fibers containing a phenol coupler
    Patent number: 3961879
    Abstract: A dye composition for keratinic fibers comprising in combinationA. at least one oxidation base comprising a paraphenylenediamine, present in the form of a free base, or in the form of an acid addition salt thereof andB. at least one coupler of the formula: ##SPC1##wherein Y represents a member selected from the group consisting of --NHCOCH.sub.3 and --NHCONH.sub.2 ; and X represents a member selected from the group consisting of fluorine, chlorine, and bromine, or the acid addition salt of the compound of formula (I).
    Type: Grant
    Filed: June 24, 1974
    Date of Patent: June 8, 1976
    Assignee: L'Oreal
    Inventors: Andree Bugaut, Monique Laudon