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Microsoft Technology Licensing, LLC
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Darren Alexander Apfel
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G08 - SIGNALLING
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Patent number 9,602,611
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Issue date Mar 21, 2017
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Microsoft Technology Licensing, LLC
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Darren A. Apfel
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Creating a communication group
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Patent number 9,578,468
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Microsoft Technology Licensing, LLC
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Darren Alexander Apfel
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Microsoft Corporation
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Darren A. Apfel
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Microsoft Corporation
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Darren A. Apfel
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Microsoft Corporation
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Darren A. Apfel
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Microsoft Corporation
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Sally Liu
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Microsoft Corporation
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David Henry Wykes
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Issue date Dec 21, 2010
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Microsoft Corporation
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David Henry Wykes
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Microsoft Corporation
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David Henry Wykes
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D14 - Recording, communication, or information retrieval equipment
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Issue date Jun 29, 2010
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David Henry Wykes
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D14 - Recording, communication, or information retrieval equipment