by heating (methods of steam generation F22B; preheating boiler feed-water or accumulating preheated boiler feed-water F22D)

by heating (methods of steam generation F22B; preheating boiler feed-water or accumulating preheated boiler feed-water F22D) · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeC02F1/02
Official titleby heating (methods of steam generation F22B; preheating boiler feed-water or accumulating preheated boiler feed-water F22D)
Display labelby heating (methods of steam generation F22B; preheating boiler feed-water or accumulating preheated boiler feed-water F22D)
Total patents434

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
201516
201623
201740
201823
201937
202041
202148
202258
202350
202452
202539
20267

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 C02F1/02?
CPC C02F1/02 is the Cooperative Patent Classification code for “by heating (methods of steam generation F22B; preheating boiler feed-water or accumulating preheated boiler feed-water F22D).”
How many patents are filed under CPC C02F1/02 (by heating (methods of steam generation F22B; preheating boiler feed-water or accumulating preheated boiler feed-water F22D))?
Our database includes 434 publications tagged with this CPC code.
Is patent activity under CPC C02F1/02 growing?
Publication counts under this code: 52 in 2024 vs 39 in 2025 (latest complete years).