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by varying the useful pumping length of the cooperating members in the axial direction

by varying the useful pumping length of the cooperating members in the axial direction · Cooperative Patent Classification (CPC)

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

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	F04C28/185
Official title	{by varying the useful pumping length of the cooperating members in the axial direction}
Display label	by varying the useful pumping length of the cooperating members in the axial direction
Total patents	7

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

Filing activity over the last five years is stable.

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