Patents by Inventor Mark E. Stillwell

Mark E. Stillwell 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).

  • Roof top for box windows
    Patent number: D359131
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: June 6, 1995
    Inventors: Mark E. Stillwell, Michael R. O'Connor
  • Roof top for bow windows
    Patent number: D359132
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: June 6, 1995
    Inventors: Mark E. Stillwell, Michael R. O'Connor
  • Roof top for bay windows
    Patent number: D359564
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: June 20, 1995
    Inventors: Mark E. Stillwell, Michael R. O'Connor
  • Roof top for box windows
    Patent number: D386264
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: November 11, 1997
    Inventors: Mark E. Stillwell, Michael R. O'Connor