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with cylindrical, sleeve, or part-annularly shaped valves

with cylindrical, sleeve, or part-annularly shaped valves · 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	F01L5/04
Official title	with cylindrical, sleeve, or part-annularly shaped valves
Display label	with cylindrical, sleeve, or part-annularly shaped valves
Total patents	6

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

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

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