Patents by Inventor Conrad L. Hejmanowski

Conrad L. Hejmanowski 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).

  • Glitter crayon
    Patent number: 4990013
    Abstract: An improved crayon composition is disclosed, comprising a base wax binder component having a melting point in excess of about 100 degrees Fahrenheit, from about 5.0 to about 50.0 weight percent of an emulsifying agent, and from about 0.01 to about 5.0 weight percent of a reflective flake.
    Type: Grant
    Filed: August 28, 1989
    Date of Patent: February 5, 1991
    Inventor: Conrad L. Hejmanowski