MUMBAI, India, March 7 -- Intellectual Property India has published a patent application (202517012256 A) filed by Transitions Optical, Ltd., Tuam, Ireland, on Feb. 13, for 'photochromic indeno-fused naphthopyran compounds, compositions, and articles containing same.'
Inventor(s) include Xiao, Wenjing; Brown, Patrick M; Chiu, Chien-Yang; and Walters, Robert W.
The application for the patent was published on March 7, under issue no. 10/2025.
According to the abstract released by the Intellectual Property India: "An indeno-fused naphthopyran having the core skeletal structure (I): (I) wherein R1 is a substituted or unsubstituted alkyl group; R2 is substituted or unsubstituted amino; substituted or unsubstituted alkyl; substituted or unsubs...