using 3He-4He dilution

using 3He-4He dilution · 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 codeF25B9/12
Official titleusing 3He-4He dilution
Display labelusing 3He-4He dilution
Total patents58

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
20161
20174
20183
20193
20205
20216
20227
20238
20248
202510
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 F25B9/12?
CPC F25B9/12 is the Cooperative Patent Classification code for “using 3He-4He dilution.”
How many patents are filed under CPC F25B9/12 (using 3He-4He dilution)?
Our database includes 58 publications tagged with this CPC code.
Is patent activity under CPC F25B9/12 growing?
Publication counts under this code: 8 in 2024 vs 10 in 2025 (latest complete years).