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Michael Liebowitz
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Concord, CA, US
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last 30 patents
Information
Patent Grant
Keyboard interface
Patent number
6,209,845
Issue date
Apr 3, 2001
Klitsner Industrial Design, LLC
Dan Klitsner
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Interactive playset for use on a computer keyboard
Patent number
D430235
Issue date
Aug 29, 2000
Klitsner Industrial Design
Michael Liebowitz
D21 - Games, toys, and sports goods
Information
Patent Grant
Interactive playset for use on a computer keyboard
Patent number
D430233
Issue date
Aug 29, 2000
Klitsner Industrial Design
Michael Liebowitz
D21 - Games, toys, and sports goods
Information
Patent Grant
Interactive playset for use on a computer keyboard
Patent number
D430234
Issue date
Aug 29, 2000
Klitsner Industrial Design
Michael Liebowitz
D21 - Games, toys, and sports goods
Information
Patent Grant
Keyboard interface device
Patent number
5,992,817
Issue date
Nov 30, 1999
Klitsner Industrial Design, LLC
Dan Klitsner
G06 - COMPUTING CALCULATING COUNTING