cooling fluid circulating inside the rotor

cooling fluid circulating inside the rotor · 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 codeF01D5/085
Official title{cooling fluid circulating inside the rotor}
Display labelcooling fluid circulating inside the rotor
Total patents293

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
201519
201625
201727
201833
201936
202045
202133
202221
202320
202412
202519
20263

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 F01D5/085?
CPC F01D5/085 is the Cooperative Patent Classification code for “cooling fluid circulating inside the rotor.”
How many patents are filed under CPC F01D5/085 (cooling fluid circulating inside the rotor)?
Our database includes 293 publications tagged with this CPC code.
Is patent activity under CPC F01D5/085 growing?
Publication counts under this code: 12 in 2024 vs 19 in 2025 (latest complete years).