Patents by Inventor Douglas J. Birkholz

Douglas J. Birkholz 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).

  • Softouch scissors
    Patent number: 5377412
    Abstract: A soft touch scissors including a first or lower blade assembly having a handle and a blade having a tang molded in the handle and a second or upper handle assembly having a handle and a blade having a tang molded in the handle, the blade assemblies being pivotally connected, and biased by a spring to an open position, a rib on the top of the lower handle assembly and a rib on the bottom of the upper handle assembly located in a position to engage the rib on the lower handle assembly and a latch slidably mounted on the upper handle assembly for movement into engagement with the rib on the lower handle assembly to lock the handle assemblies in a closed position.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: January 3, 1995
    Assignee: Fiskars Oy Ab
    Inventors: Robert T. Schofield, Craig H. Melter, Douglas J. Birkholz
  • Scissors
    Patent number: D335807
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: May 25, 1993
    Assignee: Fiskars Oy Ab
    Inventor: Douglas J. Birkholz
  • Scissors
    Patent number: D339725
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: September 28, 1993
    Assignee: Fiskars Oy AB
    Inventor: Douglas J. Birkholz
  • Rotary cutter
    Patent number: D341764
    Type: Grant
    Filed: March 18, 1992
    Date of Patent: November 30, 1993
    Assignee: Fiskars Oy Ab
    Inventor: Douglas J. Birkholz
  • Rotary cutting tool
    Patent number: D346542
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: May 3, 1994
    Assignee: Fiskars Oy Ab
    Inventor: Douglas J. Birkholz
  • Scissors
    Patent number: D354423
    Type: Grant
    Filed: January 12, 1994
    Date of Patent: January 17, 1995
    Assignee: Fiskars Inc.
    Inventor: Douglas J. Birkholz
  • 5" scissors
    Patent number: D354890
    Type: Grant
    Filed: August 5, 1993
    Date of Patent: January 31, 1995
    Assignee: Fiskars Oy Ab
    Inventors: Gabriel E. Concari, Douglas J. Birkholz, Charles S. Ramsey
  • Pivoted hand tool handle
    Patent number: D359427
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: June 20, 1995
    Assignee: Fiskars Inc.
    Inventor: Douglas J. Birkholz