Patents by Inventor Johann C. Eisen

Johann C. Eisen 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).

  • Cosmetic pencil sharpener
    Patent number: 5167071
    Abstract: A sharpener for lead pencils, colored pencils, cosmetic pencils and the like with an essentially cuboid shaped sharpener housing, in which the longitudinal lateral sides of the sharpener housing are provided with complementary protrusions or recesses that allow fitting together of two sharpeners.
    Type: Grant
    Filed: January 14, 1992
    Date of Patent: December 1, 1992
    Assignee: Cosmolab, Inc.
    Inventor: Johann C. Eisen