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Ryan R. Dirkx
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Belle Mead, NJ, US
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last 30 patents
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Patent Grant
Electrochromic element, materials for use in such element, processe...
Patent number
5,276,547
Issue date
Jan 4, 1994
Elf Atochem North America, Inc.
Jean P. Couput
G02 - OPTICS
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Patent Grant
Electrochromic element, materials for use in such element, processe...
Patent number
5,274,493
Issue date
Dec 28, 1993
Elf Atochem North America, Inc.
Jean-Paul Couput
G02 - OPTICS