Analysis system
US-12529640-B2 · Jan 20, 2026 · US
by sink-float separation
by sink-float separation · 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 | B03B5/28 |
| Official title | by sink-float separation |
| Display label | by sink-float separation |
| Total patents | 50 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 3 |
| 2017 | 6 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 7 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Centrifugal field-flow fractionation device
US-12478983-B2 · Nov 25, 2025 · US
Classification system using fluidized bed
US-12337331-B2 · Jun 24, 2025 · US
Canister
US-12285768-B2 · Apr 29, 2025 · US
Combustion ash handling method and system, and petroleum-based fuel combustion plant
US-12173382-B2 · Dec 24, 2024 · US
Classification System Using Fluidized Bed
US-2024382976-A1 · Nov 21, 2024 · US
Material Separating Assemblies and Methods
US-2024359367-A1 · Oct 31, 2024 · US
Wide-size-fraction flotation system and process
US-12115539-B2 · Oct 15, 2024 · US
Field flow fractionation device including mass balancer portion
US-11774412-B2 · Oct 3, 2023 · US
Recycling system for recycling plastic laminate into recycled materials, recycling method, and laminate separation and recovery method
US-2023234263-A1 · Jul 27, 2023 · US
Method for producing semiconducting single-walled carbon nanotube dispersion
US-11708269-B2 · Jul 25, 2023 · US
Centrifugal density separation of waste plastic
US-2023078550-A1 · Mar 16, 2023 · US
Canister
US-2023065169-A1 · Mar 2, 2023 · US
Centrifugal field-flow fractionation device
US-2023034246-A1 · Feb 2, 2023 · US
Analysis system
US-2023003631-A1 · Jan 5, 2023 · US
Combustion ash handling method and system, and petroleum-based fuel combustion plant
US-2022298602-A1 · Sep 22, 2022 · US
Centrifugal field-flow fractionation device
US-11407146-B2 · Aug 9, 2022 · US
Centrifugal field-flow fractionation device
US-11389806-B2 · Jul 19, 2022 · US
Wide-size-fraction flotation system and process
US-2021402414-A1 · Dec 30, 2021 · US
Method for producing semiconducting single-walled carbon nanotube dispersion
US-2021188642-A1 · Jun 24, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B03B5/28?
- CPC B03B5/28 is the Cooperative Patent Classification code for “by sink-float separation.”
- How many patents are filed under CPC B03B5/28 (by sink-float separation)?
- Our database includes 50 publications tagged with this CPC code.
- Is patent activity under CPC B03B5/28 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).