Patents by Inventor Susan L. Snyder

Susan L. Snyder 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).

  • Comb for practicing selective hair coloring
    Patent number: 5024243
    Abstract: A method of coloring selected hair shafts with a hair treating material, while leaving adjacent hair shafts untreated, in which hair treating material is laid down simultaneously onto a plurality of generally parallel spaced and non-overlapping areas running along the lay of the hair; a method of touching up hair which has been so treated, after the roots have grown out; and a coloring comb adapted to use in the method, said coloring comb having narrow dispensing gullets separated by plural combing teeth.
    Type: Grant
    Filed: January 10, 1990
    Date of Patent: June 18, 1991
    Inventor: Susan L. Snyder
  • Method of selective hair coloring and coloring comb for practicing method
    Patent number: 4987909
    Abstract: A method of coloring selected hair shafts with a thixotropic hair treating material, while leaving adjacent hair shafts untreated, in which a thixotropic hair treating material is laid down onto a plurality of generally parallel spaced and non-overlapping areas running along the lay of the hair; and a method of touching up hair which has been so treated, after the roots have grown out.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: January 29, 1991
    Inventor: Susan L. Snyder
  • Hair conditioning polymers containing alkoxylated nitrogen salts of sulfonic acid
    Patent number: 4859458
    Abstract: Polymers containing alkoxylated nitrogen salts of sulfonic acid are useful for imparting good conditioning properties such as combability, feel, manageability, and curl retention to hair. The polymers may also comprise neutral, anionic, and/or cationic monomers.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: August 22, 1989
    Assignee: Morton Thiokol, Inc.
    Inventors: Ann B. Salamone, Susan L. Snyder