Vortex mixers and associated methods, systems, and apparatuses thereof
US-12496561-B2 · Dec 16, 2025 · US
Mixing the contents of independent containers, e.g. test tubes
Mixing the contents of independent containers, e.g. test tubes · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01F31/20 |
| Official title | Mixing the contents of independent containers, e.g. test tubes |
| Display label | Mixing the contents of independent containers, e.g. test tubes |
| Total patents | 51 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 2 |
| 2017 | 6 |
| 2018 | 6 |
| 2019 | 1 |
| 2020 | 8 |
| 2021 | 9 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 5 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Mixing apparatus, mixing system and method for mixing substances in closed containers
US-12370512-B2 · Jul 29, 2025 · US
Miniaturised device for automated manufacture of pharmaceutical compositions, and associated method
US-12303850-B2 · May 20, 2025 · US
Methods and devices for preparation of ultrasound contrast agents
US-2025121101-A1 · Apr 17, 2025 · US
Non-contact, on-slide fluid mixing
US-2024335840-A1 · Oct 10, 2024 · US
Methods and devices for preparation of ultrasound contrast agents
US-12097270-B2 · Sep 24, 2024 · US
Mixing apparatus, mixing system and method for mixing substances in closed containers
US-2024252997-A1 · Aug 1, 2024 · US
Non-contact, on-slide fluid mixing
US-12042796-B2 · Jul 23, 2024 · US
Mixing apparatus, mixing system and method for mixing substances in closed containers
US-11969700-B2 · Apr 30, 2024 · US
Closed colorant delivery system and method of use
US-2023271148-A1 · Aug 31, 2023 · US
Methods and apparatus to mitigate bubble formation in a liquid
US-11738346-B2 · Aug 29, 2023 · US
Non-contact, on-slide fluid mixing
US-2022305497-A1 · Sep 29, 2022 · US
Non-contact, on-slide fluid mixing
US-11376600-B2 · Jul 5, 2022 · US
Vortex mixers and associated methods, systems, and apparatuses thereof
US-2022126244-A1 · Apr 28, 2022 · US
Sprayer system
US-11273462-B2 · Mar 15, 2022 · US
Mass spectrometric sample preparation for matrix-assisted ionization
US-11145499-B2 · Oct 12, 2021 · US
Miniaturised device for automated manufacture of pharmaceutical compositions, and associated method
US-2021308642-A1 · Oct 7, 2021 · US
Dynamic wax deposition testing systems and methods
US-11125735-B2 · Sep 21, 2021 · US
Bioreactor bags
US-11118149-B2 · Sep 14, 2021 · US
Mixing apparatus, mixing system and method for mixing substances in closed containers
US-2021260541-A1 · Aug 26, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01F31/20?
- CPC B01F31/20 is the Cooperative Patent Classification code for “Mixing the contents of independent containers, e.g. test tubes.”
- How many patents are filed under CPC B01F31/20 (Mixing the contents of independent containers, e.g. test tubes)?
- Our database includes 51 publications tagged with this CPC code.
- Is patent activity under CPC B01F31/20 growing?
- Publication counts under this code: 5 in 2024 vs 4 in 2025 (latest complete years).