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the secondary air-valve controlled by main combustion-air throttle

the secondary air-valve controlled by main combustion-air throttle · 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	F02M23/03
Official title	the secondary air-valve controlled by main combustion-air throttle
Display label	the secondary air-valve controlled by main combustion-air throttle
Total patents	6

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

Filing activity appears stable based on the most recent years.

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