4. Compositions
  5. Light transmission modifying compositions
  6. Displaying color change

Anu Chopra

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Indeno-fused photochromic naphthopyrans

Compositions – Light transmission modifying compositions – Displaying color change
Reexamination Certificate

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Indeno-fused photochromic naphthopyrans, naphthols and...

Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent
Reexamination Certificate

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Photochromic articles that activate behind ultraviolet...

Stock material or miscellaneous articles – Composite
Reexamination Certificate

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Photochromic materials derived from ring-opening monomers...

Compositions – Light transmission modifying compositions – Displaying color change
Reexamination Certificate

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Photochromic naphthopyrans

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
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Profile ID: LFUS-PAI-P-1899287

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