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Balanced-flue arrangements, i.e. devices which combine air inlet to combustion unit with smoke outlet

Balanced-flue arrangements, i.e. devices which combine air inlet to combustion unit with smoke outlet · Cooperative Patent Classification (CPC)

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

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeF23L17/04
Official titleBalanced-flue arrangements, i.e. devices which combine air inlet to combustion unit with smoke outlet
Display labelBalanced-flue arrangements, i.e. devices which combine air inlet to combustion unit with smoke outlet
Total patents12

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
20152
20161
20173
20182
20192
20211
20251

Representative patents

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