US Patent 9102652 Dichroic-photochromic 2H-naphtho[1,2-b]pyran compounds and devices

Patent 9102652 was granted and assigned to Alphamicron, Inc. on August, 2015 by the United States Patent and Trademark Office.

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August 11, 2015

Patent Application Number

14215902

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March 17, 2014

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Patent abstract

A naphthopyran compound represented by the formula

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