Patents by Inventor Andrew Knappett

Andrew Knappett 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).

  • Wood cutting knife assembly providing improved knife stability
    Patent number: 7069969
    Abstract: A wood chipping or cutting knife assembly providing improved knife stability. A number of control surfaces and other geometric features are provided to stabilize the knife in the assembly. An improved splitter is also provided for the knife assembly.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: July 4, 2006
    Assignee: Key Knife, Inc.
    Inventors: Andrew Knappett, Brian J. Rusaw, Peter J. Marshall, Bradley R. Stager, John S. Luecke
  • Wood cutting knife assembly providing improved knife stability
    Publication number: 20050067051
    Abstract: A wood chipping or cutting knife assembly providing improved knife stability. A number of control surfaces and other geometric features are provided to stabilize the knife in the assembly. An improved splitter is also provided for the knife assembly.
    Type: Application
    Filed: September 25, 2003
    Publication date: March 31, 2005
    Inventors: Andrew Knappett, Brian Rusaw, Peter Marshall, Bradley Stager, John Luecke