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Hongwen Li
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Pittsford, NY, US
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last 30 patents
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Patent Grant
Method for making a tantala/silica interference using heat treatment
Patent number
5,843,518
Issue date
Dec 1, 1998
Osram Sylvania Inc.
Hongwen Li
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Patent Grant
Method for making a tantala/silica interference filter on the surfa...
Patent number
5,658,612
Issue date
Aug 19, 1997
Osram Sylvania Inc.
Hongwen Li
H01 - BASIC ELECTRIC ELEMENTS