Patents by Inventor Andrew E. Kropf

Andrew E. Kropf 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).

  • Patent number: 7615038
    Abstract: A disposable diaper is provided comprising a diaper body having an outer surface. The disposable diaper includes a waterproof layer secured to an outer surface layer of the diaper body to form a pocket between the layer and the outer surface. The disposable diaper further comprises means for sealing the pocket to seal in waste and odor. A method for sealing and disposing of the diaper also is provided, comprising the steps of rolling the diaper inwardly toward the pocket, inverting the pocket to receive the diaper body, and sealing the pocket to enclose the diaper body.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: November 10, 2009
    Inventors: Keith E. Kropf, Andrew E. Kropf