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involving vertically-disposed water tubes {(F22B37/645 takes precedence)}

involving vertically-disposed water tubes {(F22B37/645 takes precedence)} · 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	F22B37/66
Official title	involving vertically-disposed water tubes {(F22B37/645 takes precedence)}
Display label	involving vertically-disposed water tubes {(F22B37/645 takes precedence)}
Total patents	3

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

Filing activity appears to be declining based on the most recent years.

Patents filed per year
Year	Patents
2017	2
2019	1

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