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Patent Classification Explorer PCE

Search Classifications

Search for IPC and CPC classification codes or keywords

C
C01
C01B
C01B 2210/00
C01B 2210/0043
C01B 2210/0078
C01B 2210/0079

CPC Subgroup Additional Only

C01B 2210/0079

Helium

Full Title

Purification or separation of specific gases > Impurity removed > Noble gases > Helium

CPC C01B 2210/0079

No direct equivalent in IPC

6 CPC-only subgroups

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

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