Patents by Inventor William E. Whitfield, Jr.

William E. Whitfield, Jr. 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).

  • Apparatus for draining land areas with an adjustable system for gravity flow
    Patent number: 6419421
    Abstract: A plastic catch basin with grate on top, box shape design to drain a low area by gravity to a final drain area through plastic pipes, the catch basin to be assembled on site according to need by constructing with side plates with a choice of holes according to need and the catch basin is designed to be more solidly constructed to hold its shape over time and use, constructed to be modified by adding additional catch basins with the plastic pipes as need arises.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: July 16, 2002
    Inventor: William E. Whitfield, Jr.