Method for detecting target substance
US-2026023060-A1 · Jan 22, 2026 · US
using precipitation {(measuring deposition or liberation of materials from an electrolyte G01N27/42)}
using precipitation {(measuring deposition or liberation of materials from an electrolyte G01N27/42)} · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01N31/02 |
| Official title | using precipitation {(measuring deposition or liberation of materials from an electrolyte G01N27/42)} |
| Display label | using precipitation {(measuring deposition or liberation of materials from an electrolyte G01N27/42)} |
| Total patents | 48 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 7 |
| 2019 | 7 |
| 2020 | 4 |
| 2021 | 7 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Potassium measurement with sodium gluconate
US-2025258087-A1 · Aug 14, 2025 · US
Chromium-free halides determination in drilling fluids
US-2025189499-A1 · Jun 12, 2025 · US
Soil Analysis Methods, Systems and Kits
US-2025189509-A1 · Jun 12, 2025 · US
Soil Analysis Methods, Systems and Kits
US-2025180539-A1 · Jun 5, 2025 · US
Method for assessing quality of amine-based shale inhibitors
US-2025137935-A1 · May 1, 2025 · US
Microfluidic chip
US-2025110092-A1 · Apr 3, 2025 · US
Method for measuring a degree of homogeneity of oils using back titration and measuring apparatus using the same
US-12153030-B2 · Nov 26, 2024 · US
Methods of assessing antibody-drug conjugates
US-2024377412-A1 · Nov 14, 2024 · US
Method for monitoring and/or controlling phase separation in chemical processes and samples
US-2024053274-A1 · Feb 15, 2024 · US
Polyvinyl sulfonate detection and removal from biomolecule compositions
US-2024026432-A1 · Jan 25, 2024 · US
Detecting amine-based inhibitors in drilling fluids
US-11768190-B2 · Sep 26, 2023 · US
Device and method for detecting the flocculation threshold of a colloidal medium, in particular a medium comprising asphaltenes, by the addition of aliphatic solvent
US-2023251176-A1 · Aug 10, 2023 · US
Determination of asphaltene solubility distribution
US-11598758-B2 · Mar 7, 2023 · US
Sulfate detection with barium
US-11408867-B2 · Aug 9, 2022 · US
Detecting amine-based inhibitors in drilling fluids
US-2021405017-A1 · Dec 30, 2021 · US
Portable sensor device for rapid detection of heavymetal ions and methods therefor
US-2021364489-A1 · Nov 25, 2021 · US
Method for measuring a degree of homogeneity of oils using reverse titration and measuring apparatus using the same
US-2021199633-A1 · Jul 1, 2021 · US
Methods of assessing antibody-drug conjugates
US-2021172866-A1 · Jun 10, 2021 · US
Methods of assessing antibody-drug conjugates
US-10976241-B2 · Apr 13, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01N31/02?
- CPC G01N31/02 is the Cooperative Patent Classification code for “using precipitation {(measuring deposition or liberation of materials from an electrolyte G01N27/42)}.”
- How many patents are filed under CPC G01N31/02 (using precipitation {(measuring deposition or liberation of materials from an electrolyte G01N27/42)})?
- Our database includes 48 publications tagged with this CPC code.
- Is patent activity under CPC G01N31/02 growing?
- Publication counts under this code: 4 in 2024 vs 6 in 2025 (latest complete years).