Patents by Inventor Diane G. Scmidt

Diane G. Scmidt 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).

  • Coated perfume particles
    Patent number: 5154842
    Abstract: Perfume particles comprise perfume dispersed within certain water-insoluble nonpolymeric carrier materials and encapsulated in a protective shell by coating with a friable coating material. The coated particles allow for preservation and protection of perfumes which are susceptible to degradation or loss in storage and in cleaning compositions. In use, the surface coating fractures and the underlying carrier/perfume particles efficiently deliver a large variety of perfume types to fabrics or other surfaces.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: October 13, 1992
    Assignees: The Procter & Gamble Company, Minnesota Mining & Manufacturing Company
    Inventors: Darlene R. Walley, Howard J. Buttery, Robert J. Norbury, Diane G. Scmidt, William R. Michael