Patents by Inventor Robert H. Carlton

Robert H. Carlton 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).

  • Disposable toilet drain unclogger
    Patent number: 6179928
    Abstract: An apparatus having a handle and a plurality of elongated loops connected to the handle provides a means for unclogging a toilet or sink drain of an impediment. In the preferred embodiment, the apparatus is long and slender in profile to fit within a toilet or sink drain. Furthermore, the apparatus is preferably made of a flexible and firm plastic, thereby providing the means for the apparatus to bend and mold when pushed through a toilet drain. Also in the preferred embodiment, the apparatus is disposable such that a user does not have to wash or store the apparatus after its use.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: January 30, 2001
    Inventor: Robert H. Carlton