C01B 19/004 — | Patent Classification Explorer

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C01
C01B
C01B 19/00
C01B 19/004

CPC Subgroup

C01B 19/004

Full Title

Selenium; Tellurium; Compounds thereof (phosphorus compounds C01B25/14)

CPC C01B 19/004

No direct equivalent in IPC

6 CPC-only subgroups

C01B 19/002 C01B 19/005

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

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