Electrochemical cell stirring
US-12578303-B2 · Mar 17, 2026 · US
Coulometry
Coulometry · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01N27/423 |
| Official title | {Coulometry} |
| Display label | Coulometry |
| 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 | 3 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 5 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 4 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Device and method for testing an electrochemical sensor
US-2026029363-A1 · Jan 29, 2026 · US
Method for determining a chemical intake capacity of a process medium in a measuring point and measuring point for determining a chemical intake capacity of a process medium
US-12487222-B2 · Dec 2, 2025 · US
Ion sensor and method for measuring ions
US-12429451-B2 · Sep 30, 2025 · US
Electrochemical cell stirring
US-2025116645-A1 · Apr 10, 2025 · US
Electrochemical cell stirring
US-12210007-B2 · Jan 28, 2025 · US
Method for charging an electrical energy storage device, electrical energy management system and computer program product for carrying out the method, and use thereof
US-2024120760-A1 · Apr 11, 2024 · US
Sensors for 3-hydroxybutyrate detection
US-2024065585-A1 · Feb 29, 2024 · US
Electrochemical cell stirring
US-2024069002-A1 · Feb 29, 2024 · US
Method for correcting two measured values from different analytical measuring devices and measuring point for carrying out the method
US-11782008-B2 · Oct 10, 2023 · US
Ion sensor and method for measuring ions
US-2023078290-A1 · Mar 16, 2023 · US
Apparatus and methods for measuring phosphate in water
US-2023072883-A1 · Mar 9, 2023 · US
Fiber-optic sensing apparatus, system and method for characterizing metal ions in solution
US-2022349820-A1 · Nov 3, 2022 · US
Alkalinity sensor
US-11029280-B2 · Jun 8, 2021 · US
Coulometric microfluidic sensors using a silver band electrode, and methods thereof
US-10983088-B2 · Apr 20, 2021 · US
Method for determining a chemical intake capacity of a process medium in a measuring point and measuring point for determining a chemical intake capacity of a process medium
US-2021033590-A1 · Feb 4, 2021 · US
Method for calibrating an analytical measuring device and measuring point for analyzing a process medium and for calibrating an analytical measuring device
US-2021033555-A1 · Feb 4, 2021 · US
Method for correcting two measured values from different analytical measuring devices and measuring point for carrying out the method
US-2021033558-A1 · Feb 4, 2021 · US
Alloy identification device
US-10794858-B2 · Oct 6, 2020 · US
Electrolytic copper plating solution analyzer, and electrolytic copper plating solution analysis method
US-10557819-B2 · Feb 11, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01N27/423?
- CPC G01N27/423 is the Cooperative Patent Classification code for “Coulometry.”
- How many patents are filed under CPC G01N27/423 (Coulometry)?
- Our database includes 35 publications tagged with this CPC code.
- Is patent activity under CPC G01N27/423 growing?
- Publication counts under this code: 3 in 2024 vs 4 in 2025 (latest complete years).