Combustion gas absorption liquid generation device and combustion ion chromatograph
US-2026049967-A1 · Feb 19, 2026 · US
electrical conductivity detectors
electrical conductivity detectors · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01N2030/645 |
| Official title | {electrical conductivity detectors} |
| Display label | electrical conductivity detectors |
| Total patents | 57 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 6 |
| 2017 | 6 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 8 |
| 2021 | 6 |
| 2022 | 7 |
| 2023 | 5 |
| 2024 | 2 |
| 2025 | 1 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Desalting system for chromatography
US-12540929-B2 · Feb 3, 2026 · US
Chromatograph system
US-2026009773-A1 · Jan 8, 2026 · US
Electrical conductivity detector
US-2025027912-A1 · Jan 23, 2025 · US
Device and method for quantitative evaluation of deodorant performance
US-12050211-B2 · Jul 30, 2024 · US
Chromatography Baseline Stability
US-2024159721-A1 · May 16, 2024 · US
Detector for liquid chromatograph
US-11828738-B2 · Nov 28, 2023 · US
Instrument and method for simultaneously testing molecular weight distribution and organic nitrogen level of water sample
US-11796525-B2 · Oct 24, 2023 · US
Detector for liquid chromatograph
US-11782031-B2 · Oct 10, 2023 · US
Desalting system for chromatography
US-2023194485-A1 · Jun 22, 2023 · US
Organic carbon detector for liquid chromatography and use thereof
US-11567043-B2 · Jan 31, 2023 · US
Ion suppressor and ion chromatograph
US-11534700-B2 · Dec 27, 2022 · US
Ion suppressor and ion chromatograph
US-11531010-B2 · Dec 20, 2022 · US
Detector for liquid chromatograph
US-2022244225-A1 · Aug 4, 2022 · US
Detector for liquid chromatograph
US-2022244223-A1 · Aug 4, 2022 · US
Electrical conductivity detector and method of determining phase adjustment value of background subtraction signal
US-11402346-B2 · Aug 2, 2022 · US
Electric conductivity detector and ion chromatograph
US-11293907-B2 · Apr 5, 2022 · US
Ion-exchange chromatography system for analyzing electrolyte solution, method of quantitative analysis of lithium salts in electrolyte solution, and preparation method for electrolyte solution using same
US-2022011281-A1 · Jan 13, 2022 · US
Measuring instrument
US-11204341-B2 · Dec 21, 2021 · US
Photothermal absorbance measurement in a flow system
US-11199491-B2 · Dec 14, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01N2030/645?
- CPC G01N2030/645 is the Cooperative Patent Classification code for “electrical conductivity detectors.”
- How many patents are filed under CPC G01N2030/645 (electrical conductivity detectors)?
- Our database includes 57 publications tagged with this CPC code.
- Is patent activity under CPC G01N2030/645 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).