Patents by Inventor Harvey Alan Freeman

Harvey Alan Freeman 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).

  • Conveniently disposable ostomy appliance
    Patent number: 5769831
    Abstract: The present invention relates to an ostomy bag having a multi-piece construction with peelable skin surfaces, and multiple perforated layers which are made of dissolvable material. Absorbent material is placed between the layers to facilitate dissolution of the bag when placed in a toilet. The multiple layers of material also permit ready identification to the wearer, by its color change appearance of the inventive applicance, that the layers thereof are properly assembled.
    Type: Grant
    Filed: May 25, 1996
    Date of Patent: June 23, 1998
    Assignee: Louisville Laboratories, Inc.
    Inventors: Harvey Alan Freeman, David Young Phelps