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Adjustable keyboard
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Patent number 5,646,817
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Issue date Jul 8, 1997
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Zenith Data Systems Corporation
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Brian E. Manser
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G06 - COMPUTING CALCULATING COUNTING
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Split rotatable keyboard
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Patent number 5,596,480
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Issue date Jan 21, 1997
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Zenith Data Systems Corporation
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Brian E. Manser
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G06 - COMPUTING CALCULATING COUNTING
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Portable personal computer
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Patent number D370006
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Issue date May 21, 1996
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Zenith Data Systems Corporation
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Peter A. Ojeda
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D14 - Recording, communication, or information retrieval equipment
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Video monitor
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Patent number D317152
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Issue date May 28, 1991
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Zenith Electronics Corporation
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John F. Czech
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D14 - Recording, communication, or information retrieval equipment
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Portable computer
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Patent number D308862
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Issue date Jun 26, 1990
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Zenith Data Systems Corporation
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Peter A. Ojeda
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D14 - Recording, communication, or information retrieval equipment
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Video display
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Patent number D306016
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Issue date Feb 13, 1990
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Zenith Electronics Corporation
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John F. Czech
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D14 - Recording, communication, or information retrieval equipment