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separation of noble gases (from air F25J3/04642; in general C01B23/00)

separation of noble gases (from air F25J3/04642; in general C01B23/00) · Cooperative Patent Classification (CPC)

Engines, pumps, lighting, heating, and mechanical systems.

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CPC classification statistics
Metric	Value
CPC code	F25J3/028
Official title	{separation of noble gases (from air F25J3/04642; in general C01B23/00)}
Display label	separation of noble gases (from air F25J3/04642; in general C01B23/00)
Total patents	10

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is growing.

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.