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with pumping means for feeding lubricant

with pumping means for feeding lubricant · Cooperative Patent Classification (CPC)

Building, mining, and civil engineering structures.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	E21B10/246
Official title	{with pumping means for feeding lubricant}
Display label	with pumping means for feeding lubricant
Total patents	4

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

Filing activity appears to be declining based on the most recent years.

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