Patents by Inventor Dirk M. Vandenbergh

Dirk M. Vandenbergh 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).

  • Plunger cup with elongated rim
    Patent number: 8782822
    Abstract: A plunger cup of a flexible material for sealing an opening of a drain has an elongated rim for sealing an opening of a drain. This plunger cup is particularly useful for releasing stoppages in a clogged drain having a noncircular opening.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: July 22, 2014
    Inventor: Dirk M. Vandenbergh