with heat supply by hot flue gases from the furnace of the steam boiler

with heat supply by hot flue gases from the furnace of the steam boiler · 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 codeF22G1/02
Official titlewith heat supply by hot flue gases from the furnace of the steam boiler
Display labelwith heat supply by hot flue gases from the furnace of the steam boiler
Total patents31

Filing trend

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

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
20151
20174
20184
20194
20203
20217
20221
20231
20242
20253
20261

Representative patents

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

Frequently asked questions

Answers are generated from the same data shown on this page.

What is CPC F22G1/02?
CPC F22G1/02 is the Cooperative Patent Classification code for “with heat supply by hot flue gases from the furnace of the steam boiler.”
How many patents are filed under CPC F22G1/02 (with heat supply by hot flue gases from the furnace of the steam boiler)?
Our database includes 31 publications tagged with this CPC code.
Is patent activity under CPC F22G1/02 growing?
Publication counts under this code: 2 in 2024 vs 3 in 2025 (latest complete years).