Oil-cooled engines

Oil-cooled engines · 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 codeF01M2005/004
Official title{Oil-cooled engines}
Display labelOil-cooled engines
Total patents68

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
20157
20163
20178
20186
201913
20207
20217
202212
20231
20241
20253

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 F01M2005/004?
CPC F01M2005/004 is the Cooperative Patent Classification code for “Oil-cooled engines.”
How many patents are filed under CPC F01M2005/004 (Oil-cooled engines)?
Our database includes 68 publications tagged with this CPC code.
Is patent activity under CPC F01M2005/004 growing?
Publication counts under this code: 1 in 2024 vs 3 in 2025 (latest complete years).