Trace oxygen sodium leak detection in nuclear reactor enclosure
US-2026081046-A1 · Mar 19, 2026 · US
for tubes
for tubes · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01M3/222 |
| Official title | {for tubes} |
| Display label | for tubes |
| Total patents | 35 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 6 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Quick disconnect adapter
US-12504107-B2 · Dec 23, 2025 · US
Systems and methods for monitoring a flow of a fluid on an external surface of a structure in motion
US-12306068-B2 · May 20, 2025 · US
Systems and methods for efficient detection of hazardous fuel gas leakage within a gas turbine compartment
US-12169168-B2 · Dec 17, 2024 · US
Seal assembly and method of testing
US-12152671-B2 · Nov 26, 2024 · US
Device and method for distinguishing a test gas escaping from a leak from an interfering gas
US-RE50099-E · Aug 27, 2024 · US
Method for detecting a leak in a fluid guiding element of a heat exchanging device
US-2024230453-A1 · Jul 11, 2024 · US
Systems and methods for monitoring a flow of a fluid on an external surface of a structure in motion
US-2024192077-A1 · Jun 13, 2024 · US
Multi-layer hose with tracer material
US-11913855-B2 · Feb 27, 2024 · US
Sensor device and gas monitoring system
US-11788999-B2 · Oct 17, 2023 · US
Hybrid fluorescent UV dye for refrigerant systems
US-11726000-B2 · Aug 15, 2023 · US
Quick disconnect adapter
US-2023077622-A1 · Mar 16, 2023 · US
Multi-layer hose with tracer material
US-2022390315-A1 · Dec 8, 2022 · US
Systems and methods for efficient detection of hazardous fuel gas leakage within a gas turbine compartment
US-2022357249-A1 · Nov 10, 2022 · US
Hybrid fluorescent uv dye for refrigerant systems
US-2022196510-A1 · Jun 23, 2022 · US
Seal assembly and method of testing
US-2022026303-A1 · Jan 27, 2022 · US
Device and method for distinguishing a test gas escaping from a leak from interfering gas
US-11199467-B2 · Dec 14, 2021 · US
Tubing markers
US-2021170155-A1 · Jun 10, 2021 · US
Gas turbomachine leak detection system and method
US-10989620-B2 · Apr 27, 2021 · US
Device and method for distinguishing a test gas escaping from a leak from interfering gas
US-2020271540-A1 · Aug 27, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01M3/222?
- CPC G01M3/222 is the Cooperative Patent Classification code for “for tubes.”
- How many patents are filed under CPC G01M3/222 (for tubes)?
- Our database includes 35 publications tagged with this CPC code.
- Is patent activity under CPC G01M3/222 growing?
- Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).