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US Patent 10501477 Photochromic thienochromene compounds

Patent 10501477 was granted and assigned to Transitions Optical on December, 2019 by the United States Patent and Trademark Office.

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Patent attributes

Patent Applicant

Transitions Optical

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Current Assignee

Transitions Optical

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Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Massimiliano Tomasulo0

Wenjing Xiao0

Brian R. Stepp0

Eric Spitler0

Jun Deng0

Robert W. Walters0

Date of Patent

December 10, 2019

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Patent Application Number

155566720

Date Filed

March 10, 2015

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Patent Citations Received

US Patent 11963868 Double-sided aspheric diffractive multifocal lens, manufacture, and uses thereof

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US Patent 11746283 Silole and germole fused ring photochromic compounds

Patent Primary Examiner

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Patent abstract

The present invention relates to photochromic compounds, such as thienochromene compounds represented by the following Formulas (1a) and/or (1b). The present invention also relates to photochromic compositions and articles containing one or more such photochromic thienochromene compounds.

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