Patents by Inventor Ian F. Douglas

Ian F. Douglas 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).

  • Portable non-flushing toilet
    Patent number: 5088134
    Abstract: A portable toilet device has a disposable waste receiving bag situated therein. The device is operable from an open or in-use position to a closed or non-use position which causes rotation of the waste receiving bag to temporarily close or seal the bag.
    Type: Grant
    Filed: May 9, 1989
    Date of Patent: February 18, 1992
    Inventor: Ian F. Douglas