Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream

Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream · 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 codeF25J2240/02
Official titleExpansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream
Display labelExpansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream
Total patents312

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
201517
201623
201731
201830
201947
202034
202130
202236
202318
202423
202518
20265

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 F25J2240/02?
CPC F25J2240/02 is the Cooperative Patent Classification code for “Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream.”
How many patents are filed under CPC F25J2240/02 (Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream)?
Our database includes 312 publications tagged with this CPC code.
Is patent activity under CPC F25J2240/02 growing?
Publication counts under this code: 23 in 2024 vs 18 in 2025 (latest complete years).