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US Patent 11746283 Silole and germole fused ring photochromic compounds

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Patent attributes

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

Patent Inventor Names

Robert W. Walters

Ryan Stayshich

Date of Patent

September 5, 2023

Patent Application Number

16622033

Date Filed

June 30, 2017

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US Patent 8698117 Indeno-fused ring compounds

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Patent Primary Examiner

Valerie Rodriguez-Garcia

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