Containers including internal mixers and methods of use
US-2025214045-A1 · Jul 3, 2025 · US
Stirrers constructions
Stirrers constructions · 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 | B01F31/449 |
| Official title | {Stirrers constructions} |
| Display label | Stirrers constructions |
| Total patents | 37 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 3 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 4 |
| 2024 | 2 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Plating apparatus and plating method
US-2025116027-A1 · Apr 10, 2025 · US
Systems, devices, and methods including a mixing element for temporarily mixing immiscible components of a multi-phase composition
US-12239205-B2 · Mar 4, 2025 · US
Vortex generator for agitation of fluids during sample preparation
US-2025011755-A1 · Jan 9, 2025 · US
Vortex generator for agitation of fluids during sample preparation
US-12116569-B2 · Oct 15, 2024 · US
Turbulence-reducing device for stirring a surface treatment solution
US-11891698-B2 · Feb 6, 2024 · US
Vortex generator for agitation of fluids during sample preparation
US-2023313172-A1 · Oct 5, 2023 · US
Vortex generator for agitation of fluids during sample preparation
US-11680258-B2 · Jun 20, 2023 · US
Linear pulsating type magnetic mixing system and an associated method of operation
US-2023109862-A1 · Apr 13, 2023 · US
Improved vortex generator for agitation of fluids during sample preparation
US-2023055471-A1 · Feb 23, 2023 · US
Systems, devices, and methods including a mixing element for temporarily mixing immiscible components of a multi-phase composition
US-2022095769-A1 · Mar 31, 2022 · US
Surface treatment device comprising a paddle for stirring a surface treatment solution, paddle for stirring a surface treatment solution and method thereof
US-11173513-B2 · Nov 16, 2021 · US
Surface Treatment Device, Surface Treatment Method And Paddle
US-2021102295-A1 · Apr 8, 2021 · US
Wave absorbing member attachable to paddle and plating apparatus including wave absorbing member
US-10914020-B2 · Feb 9, 2021 · US
Paddle for use of stirring plating solution and plating apparatus including paddle
US-10829865-B2 · Nov 10, 2020 · US
Reciprocating stirring apparatus having micro bubble generating device
US-10799841-B2 · Oct 13, 2020 · US
Continuous mixing apparatus, system, and continuous mixing method for powder/granular material and viscous liquid
US-10773224-B2 · Sep 15, 2020 · US
Probes and liquid handling systems and methods including the same
US-2020269238-A1 · Aug 27, 2020 · US
Surface treatment device, surface treatment method and paddle
US-2019309435-A1 · Oct 10, 2019 · US
Paddle for use of stirring plating solution and plating apparatus including paddle
US-2019271095-A1 · Sep 5, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01F31/449?
- CPC B01F31/449 is the Cooperative Patent Classification code for “Stirrers constructions.”
- How many patents are filed under CPC B01F31/449 (Stirrers constructions)?
- Our database includes 37 publications tagged with this CPC code.
- Is patent activity under CPC B01F31/449 growing?
- Publication counts under this code: 2 in 2024 vs 4 in 2025 (latest complete years).