Patents by Inventor William H. Hofmann

William H. Hofmann 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).

  • Prebrushing liquid oral composition
    Patent number: 6361762
    Abstract: A liquid oral composition for loosening and removing accumulated plaque deposits on dental surfaces which has a slightly acidic pH of about 5.0 to less than 7.0 and is stable when stored at 7°-40° C. for prolonged periods. The composition contains 0.15-0.25 wt. % sodium benzoate, 0.025-0.65 wt. % sodium lauryl sulfate and 0.005-0.015 wt. % tetrasodium pyrophosphate as active ingredients.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: March 26, 2002
    Assignee: Vi-Jon Laboratories, Inc.
    Inventor: William H. Hofmann
  • Moisture retaining aftershave
    Patent number: 5194252
    Abstract: A novel composition of a hydrolyzed protein together with a surfactant produces a proteinaceous film on the skin to retard moisture loss in cosmetic and toiletry products, such as after shaves, and cleansing lotions. The products retard moisture loss from the skin matrix, but the primary cleansing functions of the products, i.e., removing excess moisture and oil, are not inhibited.
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: March 16, 1993
    Assignee: ViJon Laboratories, Inc.
    Inventor: William H. Hofmann
  • Nail polish remover
    Patent number: 5077038
    Abstract: A nail polish remover base comprising less than 79% acetone or less than 81% ethyl acetate combined with water or a mixture of a water and ethanol to produce a 100% by weight of the base. The base can be combined with vegetable or animal protein, perfumes, surfactants and coloring agents to produce a final nail polish remover.
    Type: Grant
    Filed: July 19, 1990
    Date of Patent: December 31, 1991
    Assignee: Vi-Jon Laboratories, Inc.
    Inventor: William H. Hofmann
  • Nail polish remover
    Patent number: 4824662
    Abstract: A nail polish remover having an acetone or ethyl acelate-ethanol base and a hydrolyzed soy protein and surfactant combination as an additive to inhibit the dehydrating charactertistics of the remover on the nails and skin of the user.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: April 25, 1989
    Assignee: Vi-Jon Laboratories, Inc.
    Inventor: William H. Hofmann