Evaluating the efficacy of leave-on cosmetic compositions to protect skin from pollutants
US-2021318246-A1 · Oct 14, 2021 · US
Diffusion; diffusivity between liquids
Diffusion; diffusivity between liquids · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01N2013/003 |
| Official title | {Diffusion; diffusivity between liquids} |
| Display label | Diffusion; diffusivity between liquids |
| Total patents | 112 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 9 |
| 2017 | 7 |
| 2018 | 11 |
| 2019 | 10 |
| 2020 | 17 |
| 2021 | 10 |
| 2022 | 14 |
| 2023 | 12 |
| 2024 | 13 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Diffusive gradients in thin films (dgt) test device for lake water and test method using same
US-2021208033-A1 · Jul 8, 2021 · US
Diffusive gradients in thin films (dgt) probe test device for sediment core in lake and test method using the same
US-2021208031-A1 · Jul 8, 2021 · US
Devices and methods for monitoring liquid-solid contact time
US-2020340897-A1 · Oct 29, 2020 · US
Apparatus and method for the non-destructive measurement of hydrogen diffusivity
US-10809241-B2 · Oct 20, 2020 · US
Diffusion monitoring protocol for optimized tissue fixation
US-2020319073-A1 · Oct 8, 2020 · US
Dry heat diffusion cell and diffusion sampling system
US-10753841-B2 · Aug 25, 2020 · US
Vitro method and apparatus for analysing the behaviour of substances in simulated physiological environment
US-10746644-B2 · Aug 18, 2020 · US
Apparatus and method for the non-destructive measurement of hydrogen diffusivity
US-10732163-B2 · Aug 4, 2020 · US
Diffusion monitoring protocol for optimized tissue fixation
US-10712250-B2 · Jul 14, 2020 · US
Diffusion cell and uses for evaluating the diffusion of a compound through a membrane
US-10705004-B2 · Jul 7, 2020 · US
Apparatus and method for the non-destructive measurement of hydrogen diffusivity
US-2020200727-A1 · Jun 25, 2020 · US
Fluidic device
US-10670504-B2 · Jun 2, 2020 · US
Gas diffusion simulation method and apparatus therefor
US-2020150014-A1 · May 14, 2020 · US
X-ray assisted electron microscopy staining procedure
US-2020150063-A1 · May 14, 2020 · US
Method for Determining Process Conditions to Remove Volatile Organic Compounds From Polymer
US-2020129920-A1 · Apr 30, 2020 · US
Method for measuring the diffusion coefficient of water within a porous medium by a nuclear magnetic resonance method
US-2020116616-A1 · Apr 16, 2020 · US
Viscosity measurements based on tracer diffusion
US-10620102-B2 · Apr 14, 2020 · US
Permeability evaluation method
US-10598622-B2 · Mar 24, 2020 · US
Vitro Method and Apparatus for Analysing the Behaviour of Substances in Simulated Physiological Environment
US-2020025664-A1 · Jan 23, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01N2013/003?
- CPC G01N2013/003 is the Cooperative Patent Classification code for “Diffusion; diffusivity between liquids.”
- How many patents are filed under CPC G01N2013/003 (Diffusion; diffusivity between liquids)?
- Our database includes 112 publications tagged with this CPC code.
- Is patent activity under CPC G01N2013/003 growing?
- Publication counts under this code: 13 in 2024 vs 5 in 2025 (latest complete years).