Patents by Inventor Christopher Karczewski

Christopher Karczewski 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).

  • Hand operated cultivating tool
    Publication number: 20080135267
    Abstract: A cultivating tool for use in flowerbeds and gardens is the subject of this invention. A unique blade configuration with a knife-like leading edge and a trailing edge having at least one flange section provides for ease in cultivating action with superior soil mixing. A mixing fork in the shape of a wishbone extends downwardly from the blade mounting plate to further enhance the cultivating action.
    Type: Application
    Filed: December 12, 2006
    Publication date: June 12, 2008
    Inventor: Christopher Karczewski
  • Cultivating tool
    Patent number: D579738
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: November 4, 2008
    Assignee: Faultless Starch/ Bon Ami Company
    Inventor: Christopher Karczewski