Patents by Inventor David Gronewald

David Gronewald 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).

  • Patent number: 7086197
    Abstract: A termiticide dispensing system, installed prior to pouring the slab foundation of a building, has a plurality of tubular units of minimal length, each having a single inlet and a single outlet, positioned and secured so that the inlet end will extend above the slab, in a location accessible after building completion, and the outlet end will extend through the slab to the underlying soil adjacent a water or drain line, so that a controlled quantity of termiticide may be dispensed through the slab, directly to each potential termite access point.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: August 8, 2006
    Inventor: David Gronewald