using Joule-Thompson effect; using vortex effect

using Joule-Thompson effect; using vortex effect · 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 codeF25B9/02
Official titleusing Joule-Thompson effect; using vortex effect
Display labelusing Joule-Thompson effect; using vortex effect
Total patents72

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
20152
20162
201710
20189
201910
20205
202110
20227
20234
20244
20258
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 F25B9/02?
CPC F25B9/02 is the Cooperative Patent Classification code for “using Joule-Thompson effect; using vortex effect.”
How many patents are filed under CPC F25B9/02 (using Joule-Thompson effect; using vortex effect)?
Our database includes 72 publications tagged with this CPC code.
Is patent activity under CPC F25B9/02 growing?
Publication counts under this code: 4 in 2024 vs 8 in 2025 (latest complete years).