Patents by Inventor Catherine Grillo

Catherine Grillo 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).

  • Hair coloring dyes incorporating aryl amines and aryl aldehydes
    Patent number: 5199954
    Abstract: An easily employed, effective and predictable hair dye composition is obtained by combining aryl amines with aryl aldehydes along with an inorganic metal salt having a valence between +1 and +3. By employing this formulation, a permanent, long-lasting, non-fading hair coloring is achieved. In the preferred embodiment, the inorganic metal salt is selected from the group consisting of aluminum chloride, ferric chloride, lithium bromide, manganese chloride, copper chloride, and manganese nitrate. In carrying out the teaching of the present invention, the aryl amine and aryl aldehyde may be applied to the hair separately or in combination, along with the inorganic metal salt. In addition, this inorganic metal salt can be applied after the application and removal of the aryl amine and aryl aldehyde.
    Type: Grant
    Filed: February 25, 1992
    Date of Patent: April 6, 1993
    Assignee: Shiseido Co., Ltd.
    Inventors: Thomas M. Schultz, Catherine Grillo, Sanae Kubo