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Patent Classification Explorer PCE

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Search for IPC and CPC classification codes or keywords

C
C01
C01B
C01B 2210/00
C01B 2210/0043
C01B 2210/0053

CPC Subgroup Additional Only

C01B 2210/0053

Hydrogen

Full Title

Purification or separation of specific gases > Impurity removed > Hydrogen

CPC C01B 2210/0053

No direct equivalent in IPC

21 CPC-only subgroups

C01B 2210/0051 C01B 2210/0054

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

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