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Plenum chambers; Resonance chambers or resonance pipes

Plenum chambers; Resonance chambers or resonance pipes · 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	F02B27/0247
Official title	{Plenum chambers; Resonance chambers or resonance pipes}
Display label	Plenum chambers; Resonance chambers or resonance pipes
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.