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for closing the flue during interruption of burner function

for closing the flue during interruption of burner function · Cooperative Patent Classification (CPC)

Engines, pumps, lighting, heating, and mechanical systems.

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Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	F23L11/005
Official title	{for closing the flue during interruption of burner function}
Display label	for closing the flue during interruption of burner function
Total patents	7

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

Filing activity over the last five years is stable.

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