Patents by Inventor Mario J. de la Guardia

Mario J. de la Guardia 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).

  • Skin and scalp barrier for use with hair treatment products
    Patent number: 5437860
    Abstract: Compositions for the protection of skin and scalp during hair relaxer treatment. Also disclosed are processes for producing said compositions, and methods of using said compositions during hair relaxer treatment. The compositions of the invention protect the scalp from the irritating side effects of hair relaxers, but do not interfere with the straightening activity of the hair relaxers. The compositions of the invention comprise paraffin and a paraffin miscible ester.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: August 1, 1995
    Assignee: Aminco, Inc.
    Inventors: David P. Jarvis, Mario J. de la Guardia, Joseph Jones, Jr.
  • Hair straightening process and hair curling process and compositions therefor
    Patent number: 4373540
    Abstract: Compositions and methods for curling hair and for straightening hair are disclosed, wherein the compositions contain, as the principal active ingredient thereof, guanidine hydroxide. The guanidine hydroxide may be conveniently prepared by reacting calcium hydroxide and guanidine carbonate.Hair is curled by contacting the hair with the composition while the hair is on curlers, or otherwise maintained in a curled configuration. After the desired treatment time, the hair is rinsed and neutralized, with long lasting curls of the so-called "permanent wave" nature resulting.Hair may be straightened by contacting the hair with the composition and maintaining the hair in a generally straight configuration over at least a portion of the time that the hair is contacted by the composition. Thereafter the hair may be rinsed and neutralized.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: February 15, 1983
    Assignee: Carson Products Company
    Inventor: Mario J. de la Guardia
  • Hair straightening process and hair curling process and compositions therefor
    Patent number: 4304244
    Abstract: Compositions and methods for curling hair and for straightening hair are disclosed, wherein the compositions contain, as the principal active ingredient thereof, guanidine hydroxide. The guanidine hydroxide may be conveniently prepared by reacting calcium hydroxide and guanidine carbonate.Hair is curled by contacting the hair with the composition while the hair is on curlers, or otherwise maintained in a curled configuration. After the desired treatment time, the hair is rinsed and neutralized, with long lasting curls of the so-called "permanent wave" nature resulting.Hair may be straightened by contacting the hair with the composition and maintaining the hair in a generally straight configuration over at least a portion of the time that the hair is contacted by the composition. Thereafter the hair may be rinsed and neutralized.
    Type: Grant
    Filed: June 9, 1977
    Date of Patent: December 8, 1981
    Assignee: Carson Products Company
    Inventor: Mario J. de la Guardia