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Kevin Michael Niemi
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Fullerton, CA, US
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last 30 patents
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Patent Grant
Optical articles comprising photochromic poly(urea-urethane)
Patent number
10,934,480
Issue date
Mar 2, 2021
Younger Mfg. Co.
Kevin Michael Niemi
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Patents Applications
last 30 patents
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Patent Application
OPTICAL ARTICLES COMPRISING PHOTOCHROMIC POLY(UREA-URETHANE)
Publication number
20210179931
Publication date
Jun 17, 2021
Younger Mfg. Co. dba Younger Optics
Kevin Michael Niemi
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Application
OPTICAL ARTICLES COMPRISING PHOTOCHROMIC POLY(UREA-URETHANE)
Publication number
20180251675
Publication date
Sep 6, 2018
Younger Mfg. Co. dba Younger Optics
Kevin Michael Niemi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...