Patents by Inventor Patrick C. Richardson

Patrick C. Richardson 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).

  • Silt fence fabric, apparatus and method
    Patent number: 6053665
    Abstract: A silt fence fabric with an enlarged edge fits into a slotted blade edge, and is paid out through the slot into the ground as the blade cuts a slit in the ground.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: April 25, 2000
    Inventor: Patrick C. Richardson