Total organic carbon measurement method and total organic carbon measurement device
US-12480928-B2 · Nov 25, 2025 · US
investigating the presence of an element by oxidation (G01N31/12 takes precedence)
investigating the presence of an element by oxidation (G01N31/12 takes precedence) · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01N31/005 |
| Official title | {investigating the presence of an element by oxidation (G01N31/12 takes precedence)} |
| Display label | investigating the presence of an element by oxidation (G01N31/12 takes precedence) |
| Total patents | 65 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 7 |
| 2022 | 4 |
| 2023 | 13 |
| 2024 | 5 |
| 2025 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuse for detecting failure of gas trap
US-12461082-B2 · Nov 4, 2025 · US
Alkene detection of ozone
US-2025327741-A1 · Oct 23, 2025 · US
Elemental analysis device
US-12228554-B2 · Feb 18, 2025 · US
Analysis system
US-2024410865-A1 · Dec 12, 2024 · US
Detection of per and polyfluoroalkyl substances using total organic fluoride
US-12163937-B2 · Dec 10, 2024 · US
Gas-Liquid Separator, Total Organic Carbon Analyzer, and Analysis System
US-2024377367-A1 · Nov 14, 2024 · US
Aqueous sample measurement via oxidizing metal to higher valence
US-12013368-B2 · Jun 18, 2024 · US
Dynamic end-point total organic fluoride measurement
US-2024102960-A1 · Mar 28, 2024 · US
Water Purification System With Inline Measurement Of Total Organic Carbon And Method Of Operating Such System
US-2023416131-A1 · Dec 28, 2023 · US
Inspection apparatus and inspection method
US-2023349879-A1 · Nov 2, 2023 · US
Method for detecting and quantifying oxygen in oxidizable compounds
US-2023349871-A1 · Nov 2, 2023 · US
Inspection apparatus
US-2023288382-A1 · Sep 14, 2023 · US
Inspection apparatus
US-2023273169-A1 · Aug 31, 2023 · US
Method for detecting and quantifying oxygen in oxidizable compounds by oxidizing a sample with an isotopic oxygen composition different from natural abundance
US-11740212-B2 · Aug 29, 2023 · US
Method and system for inspecting growth quality of graphene
US-11714071-B2 · Aug 1, 2023 · US
Apparatus and method for measurement of halogens in samples
US-2023228722-A1 · Jul 20, 2023 · US
Detection of per and polyfluoroalkyl substances using total organic fluoride
US-2023228726-A1 · Jul 20, 2023 · US
Elemental analysis device
US-2023221292-A1 · Jul 13, 2023 · US
Methods and apparatus for analyte concentration monitoring using harmonic relationships
US-11666253-B2 · Jun 6, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01N31/005?
- CPC G01N31/005 is the Cooperative Patent Classification code for “investigating the presence of an element by oxidation (G01N31/12 takes precedence).”
- How many patents are filed under CPC G01N31/005 (investigating the presence of an element by oxidation (G01N31/12 takes precedence))?
- Our database includes 65 publications tagged with this CPC code.
- Is patent activity under CPC G01N31/005 growing?
- Publication counts under this code: 5 in 2024 vs 9 in 2025 (latest complete years).