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having three or more inlet valves

having three or more inlet 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	F02B31/087
Official title	{having three or more inlet valves}
Display label	having three or more inlet valves
Total patents	2

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

Not enough yearly data to assess filing trend yet.

Patents filed per year
Year	Patents
2018	2

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