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Richard W. Hoffman Jr.
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Bay Village, OH, US
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last 30 patents
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Patent Grant
Using a critical composition grading technique to deposit InGaAs ep...
Patent number
6,482,672
Issue date
Nov 19, 2002
Essential Research, Inc.
Richard W. Hoffman
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
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Patent Grant
Hydrogen passivated heteroepitaxial III-V photovoltaic devices grow...
Patent number
5,571,339
Issue date
Nov 5, 1996
The Ohio State Univ. Research Found
Steven A. Ringel
H01 - BASIC ELECTRIC ELEMENTS