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Erbium doped optical devices
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Patent number 5,249,195
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Issue date Sep 28, 1993
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AT&T Bell Laboratories
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Leonard C. Feldman
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H01 - BASIC ELECTRIC ELEMENTS
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Light emitting diode
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Patent number 5,226,053
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Issue date Jul 6, 1993
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AT&T Bell Laboratories
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Alfred Y. Cho
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H01 - BASIC ELECTRIC ELEMENTS
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Coating for optical devices
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Patent number 4,749,255
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Issue date Jun 7, 1988
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American Telephone and Telegraph Company, AT&T Bell Laboratories
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Utpal K. Chakrabarti
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Fabrication of devices using phosphorus glasses
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Patent number 4,731,293
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Issue date Mar 15, 1988
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American Telephone and Telegraph Company, AT&T Bell Laboratories
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David T. Ekholm
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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