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

Alexandre Chif

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Photochromic naphthopyran compounds

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

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Photochromic spiro(indoline)naphthoxazines

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

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Profile ID: LFUS-PAI-P-2602910

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