Patents by Inventor William M. Ogui

William M. Ogui 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).

  • Sealed self-cleaning aquarium apparatus
    Patent number: 4156401
    Abstract: A sealed liquid filled tank is carried above a liquid containing reservoir. A pump in the reservoir forces liquid upwardly through an interconnecting conduit into the tank. An overflow pipe in the tank directs the liquid back into the reservoir through filters. Fish feeding means are provided in the conduit so that food can be supplied to the tank without unsealing it.
    Type: Grant
    Filed: September 23, 1977
    Date of Patent: May 29, 1979
    Inventor: William M. Ogui