Patents by Inventor Keith J. Tritschler

Keith J. Tritschler 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).

  • Keyboard with multimedia display and roller module
    Patent number: D458259
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: June 4, 2002
    Assignee: Logitech Europe S.A.
    Inventors: Keith J. Tritschler, Peter Sheehan, John Skeehan, Denis Pavillard
  • Keyboard with roller and volume dial
    Patent number: D458605
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: June 11, 2002
    Assignee: Logitech Europe S.A.
    Inventors: Keith J. Tritschler, John Skeehan, Denis Pavillard
  • Keyboard with volume control
    Patent number: D458606
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: June 11, 2002
    Assignee: Logitech Europe S.A.
    Inventors: Keith J. Tritschler, John Skeehan, Denis Pavillard
  • Keyboard with multimedia and roller modules
    Patent number: D458607
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: June 11, 2002
    Assignee: Logitech Europe S.A.
    Inventors: Keith J. Tritschler, John Skeehan, Denis Pavillard
  • Foldable keyboard
    Patent number: D470493
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: February 18, 2003
    Assignee: Logitech Europe S.A.
    Inventors: Keith J. Tritschler, Jean-Marc Flueckiger, Denis Pavillard, Patrick Monney
  • Keyboard with roller
    Patent number: D471909
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: March 18, 2003
    Assignee: Logitech Europe S.A.
    Inventor: Keith J. Tritschler
  • Flexible keyboard
    Patent number: D475709
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: June 10, 2003
    Assignee: Logitech Europe S.A.
    Inventors: Keith J. Tritschler, Brian Stephens, Jean-Marc Flueckiger, Denis Pavillard, Patrick Monney
  • Keyboard with game controls
    Patent number: D475710
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: June 10, 2003
    Assignee: Logitech Europe S.A.
    Inventors: Peter Sheehan, Diarmuid MacMahon, David Maher, Keith J. Tritschler, Cathal Loughnane, Chris Pate, Fred Swan, Ming Yu