What is CPC F24F1/44?

CPC F24F1/44 is the Cooperative Patent Classification code for “characterised by the use of internal combustion engines.”

How many patents are filed under CPC F24F1/44 (characterised by the use of internal combustion engines)?

Our database includes 27 publications tagged with this CPC code.

Publication counts under this code: 2 in 2023 vs 1 in 2024 (latest complete years).

characterised by the use of internal combustion engines · Cooperative Patent Classification (CPC)

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

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	F24F1/44
Official title	characterised by the use of internal combustion engines
Display label	characterised by the use of internal combustion engines
Total patents	27

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

Filing activity over the last five years is rapidly declining.

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

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

What is CPC F24F1/44?: CPC F24F1/44 is the Cooperative Patent Classification code for “characterised by the use of internal combustion engines.”
How many patents are filed under CPC F24F1/44 (characterised by the use of internal combustion engines)?: Our database includes 27 publications tagged with this CPC code.
Is patent activity under CPC F24F1/44 growing?: Publication counts under this code: 2 in 2023 vs 1 in 2024 (latest complete years).