Keyboard Patents

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A gallery of patents that describe technologies or illustrate designs relating to IBM and family keyboards, typewriters and keypunches. This includes keyswitch/actuator designs, ornamental designs (overall appearance), integrated pointing devices such as TrackPoints, and host systems such as PCs, laptops, terminals, consoles and electronic typewriters. All illustrations provided are from the patents themselves, which are believed to be within the public domain. A total of 112 patents have been recorded. The patent list is currently filtered to 3 patent(s).

U.S. Design Patent 344,724 (USD344724S)

A patent diagram depicting IBM's keyboard from a front-left perspective

Applied 10 Dec 1991

Published 1 Mar 1994

Expired 1 Mar 2008

More info

Name	Keyboard
Inventors	Thomas E. Pangburn
Assignees	Lexmark
Description	An ornamental design depicting the original IBM Space Saver Keyboard (Model M4).

U.S. Design Patent 346,377 (USD346377S)

A patent diagram of Lexmark's keyboard from a front-right perspective

Applied 9 Oct 1992

Published 26 Apr 1994

Expired 26 Apr 2008

More info

Name	Keyboard
Inventors	Kenneth H. Mimlitch, Thomas E. Pangburn
Assignees	Lexmark
Description	An ornamental design depicting a Lexmark Classic Touch Keyboard with Integrated 16mm Trackball (Model M5-1).

U.S. Design Patent 346,796 (USD346796S)

A patent diagram depicting Lexmark's keyboard from a front-right perspective

Applied 9 Oct 1992

Published 10 May 1994

Expired 10 May 2008

More info

Name	Keyboard
Inventors	Thomas E. Pangburn
Assignees	Lexmark
Description	An ornamental design depicting a Lexmark Classic Touch Keyboard with Integrated 25mm Trackball (Model M5-2).