PatentsDB

using tubes or passages containing heated fluids {, e.g. acting as radiative elements; Closed-loop systems (for combustion gases F26B3/305)}

using tubes or passages containing heated fluids {, e.g. acting as radiative elements; Closed-loop systems (for combustion gases F26B3/305)} · 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 codeF26B23/10
Official titleusing tubes or passages containing heated fluids {, e.g. acting as radiative elements; Closed-loop systems (for combustion gases F26B3/305)}
Display labelusing tubes or passages containing heated fluids {, e.g. acting as radiative elements; Closed-loop systems (for combustion gases F26B3/305)}
Total patents50

Filing trend

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

Filing activity over the last five years is rapidly growing.

Patents filed per year
YearPatents
20151
20162
20171
20184
20193
20203
20211
202210
20236
202411
20258

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 F26B23/10?
CPC F26B23/10 is the Cooperative Patent Classification code for “using tubes or passages containing heated fluids {, e.g. acting as radiative elements; Closed-loop systems (for combustion gases F26B3/305)}.”
How many patents are filed under CPC F26B23/10 (using tubes or passages containing heated fluids {, e.g. acting as radiative elements; Closed-loop systems (for combustion gases F26B3/305)})?
Our database includes 50 publications tagged with this CPC code.
Is patent activity under CPC F26B23/10 growing?
Publication counts under this code: 11 in 2024 vs 8 in 2025 (latest complete years).