Photochromic composition with polyol and poly(anhydride) | Patent Publication Number 20220325133

US 20220325133 A1

Patent NumberUS 12163045 B2

Application Number17638349

Filled DateAug 30, 2019

Priority DateAug 30, 2019

Publication DateOct 13, 2022

Original AssigneeTransitions Optical Inc.

Current AssigneeTransitions Optical Inc.

Inventor/ApplicantsBrad S. Veldkamp
Ramaiahgari Reddy
Anil Kumar

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