PatentsDB

requiring the use of refrigeration, e.g. of helium or hydrogen {; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process}

requiring the use of refrigeration, e.g. of helium or hydrogen {; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process} · 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 codeF25J1/02
Official titlerequiring the use of refrigeration, e.g. of helium or hydrogen {; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process}
Display labelrequiring the use of refrigeration, e.g. of helium or hydrogen {; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process}
Total patents41

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
20154
20164
20176
20184
20193
20206
20215
20223
20231
20243
20252

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 F25J1/02?
CPC F25J1/02 is the Cooperative Patent Classification code for “requiring the use of refrigeration, e.g. of helium or hydrogen {; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process}.”
How many patents are filed under CPC F25J1/02 (requiring the use of refrigeration, e.g. of helium or hydrogen {; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process})?
Our database includes 41 publications tagged with this CPC code.
Is patent activity under CPC F25J1/02 growing?
Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).