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Issue date Feb 1, 2011
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International Business Machines Corporation
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Ronald Fagin
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G06 - COMPUTING CALCULATING COUNTING
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Quasi-inverses of schema mappings
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Patent number 7,783,680
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Issue date Aug 24, 2010
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International Business Machines Corporation
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Ronald Fagin
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G06 - COMPUTING CALCULATING COUNTING
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Lossy index compression
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Patent number 7,356,527
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Issue date Apr 8, 2008
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International Business Machines Corporation
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David Carmel
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G06 - COMPUTING CALCULATING COUNTING
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Digital pen using speckle tracking
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Patent number 6,686,579
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Issue date Feb 3, 2004
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International Business Machines Corporation
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Ronald Fagin
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G06 - COMPUTING CALCULATING COUNTING
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