The use of stable isotopes to prove authentication of manufacturing location
US-2022296717-A1 · Sep 22, 2022 · US
Oils; Viscous liquids; Paints; Inks (G01N33/22 takes precedence)
Oils; Viscous liquids; Paints; Inks (G01N33/22 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 | G01N33/26 |
| Official title | Oils; Viscous liquids; Paints; Inks (G01N33/22 takes precedence) |
| Display label | Oils; Viscous liquids; Paints; Inks (G01N33/22 takes precedence) |
| Total patents | 71 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 11 |
| 2017 | 6 |
| 2018 | 9 |
| 2019 | 10 |
| 2020 | 8 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Apparatus and method for measuring concentration of an analyte in bio-samples
US-11378540-B2 · Jul 5, 2022 · US
Mass spectrometric determination of eicosapentaenoic acid and docosahexaenoic acid
US-11181537-B2 · Nov 23, 2021 · US
Method for estimating physical property of aqueous sample
US-2021208042-A1 · Jul 8, 2021 · US
Systems and methods for screening solvents for dissolving tank bottom sludge
US-11002668-B2 · May 11, 2021 · US
Product sustainability scorecard
US-10942159-B2 · Mar 9, 2021 · US
Method of Diagnosing Oil-Immersed Electrical Apparatus
US-2021033570-A1 · Feb 4, 2021 · US
Systems and methods for screening solvents for dissolving tank bottom sludge
US-2020363325-A1 · Nov 19, 2020 · US
Apparatus and method for measuring concentration of an analyte in bio-samples
US-2020278314-A1 · Sep 3, 2020 · US
Methods and systems for characterizing void fractions
US-10761042-B2 · Sep 1, 2020 · US
Systems for in situ monitoring of working fluids and working fluid systems
US-10738669-B2 · Aug 11, 2020 · US
Apparatus and method for measuring concentration of an analyte in whole blood samples
US-10690619-B2 · Jun 23, 2020 · US
Mass spectrometric determination of eicosapentaenoic acid and docosahexaenoic acid
US-2020158741-A1 · May 21, 2020 · US
Wireless system and method for measuring an operative condition of a machine
US-2020041480-A1 · Feb 6, 2020 · US
Mass spectrometric determination of eicosapentaenoic acid and docosahexaenoic acid
US-10534008-B2 · Jan 14, 2020 · US
Wireless system and method for measuring an operative condition of a machine
US-10488385-B2 · Nov 26, 2019 · US
System and method for assessing power transformers
US-10488384-B2 · Nov 26, 2019 · US
Product sustainability scorecard
US-2019331655-A1 · Oct 31, 2019 · US
Methods and systems for characterizing void fractions
US-2019277788-A1 · Sep 12, 2019 · US
Dual acoustic and electrical analysis technique for the tomographic determination of multiphase flows in pipes and/or liquid/froth interfaces in process tanks
US-10379071-B2 · Aug 13, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01N33/26?
- CPC G01N33/26 is the Cooperative Patent Classification code for “Oils; Viscous liquids; Paints; Inks (G01N33/22 takes precedence).”
- How many patents are filed under CPC G01N33/26 (Oils; Viscous liquids; Paints; Inks (G01N33/22 takes precedence))?
- Our database includes 71 publications tagged with this CPC code.
- Is patent activity under CPC G01N33/26 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).