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Patent Classification Explorer PCE

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G
G02
G02F
G02F 2202/00
G02F 2202/14

CPC Subgroup Additional Only

G02F 2202/14

photochromic

Full Title

Materials and properties > photochromic

CPC G02F 2202/14

No direct equivalent in IPC

22 CPC-only subgroups

G02F 2202/13 G02F 2202/16

Data: WIPO (IPC), EPO/USPTO (CPC) — CC BY 4.0

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