Surfactant removal from produced waters
US-10501340-B2 · Dec 10, 2019 · US
Separation of suspended solid particles from liquids by sedimentation ({separation of ores or the like by sedimentation B03B5/48 - B03B5/60} ; differential sedimentation B03D3/00; {purification of water, waste water, sewage or sludge C02F, e.g.} devices for separating or removing fatty or oily substances or similar floating material from water, waste water or sewage C02F1/40)
Separation of suspended solid particles from liquids by sedimentation ({separation of ores or the like by sedimentation B03B5/48 - B03B5/60} ; differential sedimentation B03D3/00; {purification of water, waste water, sewage or sludge C02F, e.g.} devices for separating or removing fatty or oily substances or similar floating material from water, waste water or sewage C02F1/40) · 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 | B01D21/00 |
| Official title | Separation of suspended solid particles from liquids by sedimentation ({separation of ores or the like by sedimentation B03B5/48 - B03B5/60} ; differential sedimentation B03D3/00; {purification of water, waste water, sewage or sludge C02F, e.g.} devices for separating or removing fatty or oily substances or similar floating material from water, waste water or sewage C02F1/40) |
| Display label | Separation of suspended solid particles from liquids by sedimentation ({separation of ores or the like by sedimentation B03B5/48 - B03B5/60} ; differential sedimentation B03D3/00; {purification of water, waste water, sewage or sludge C02F, e.g.} devices for separating or removing fatty or oily substances or similar floating material from water, waste water or sewage C02F1/40) |
| Total patents | 117 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 6 |
| 2017 | 17 |
| 2018 | 22 |
| 2019 | 8 |
| 2020 | 17 |
| 2021 | 11 |
| 2022 | 5 |
| 2023 | 8 |
| 2024 | 5 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fiber microfluidics
US-2019046986-A1 · Feb 14, 2019 · US
Connection assembly
US-2018340697-A1 · Nov 29, 2018 · US
Produced water treatment and solids precipitation from thermal treatment blowdown
US-10132145-B2 · Nov 20, 2018 · US
Process for Gas/Vapor Separation by Cryogenic Froth Flotation
US-2018320963-A1 · Nov 8, 2018 · US
Separation method for immiscible fluids
US-10092861-B2 · Oct 9, 2018 · US
Separator device
US-10092912-B2 · Oct 9, 2018 · US
Thermoelectric power generation and mineral extraction from brines
US-2018269367-A1 · Sep 20, 2018 · US
Separation of liquid in droplets and sedimented material enclosed therein
US-2018269050-A1 · Sep 20, 2018 · US
Thermoelectric power generation and mineral extraction from brines
US-10038131-B2 · Jul 31, 2018 · US
Apparatus and method for gravity separation and oil and gas production system
US-2018207550-A1 · Jul 26, 2018 · US
Driver and control for variable impedence load
US-2018207551-A1 · Jul 26, 2018 · US
Separator device
US-10029264-B2 · Jul 24, 2018 · US
Connection assembly
US-10024552-B2 · Jul 17, 2018 · US
Filter
US-D823431-S · Jul 17, 2018 · US
Separator device
US-10005089-B2 · Jun 26, 2018 · US
Technology for purifying NK cells and other cell types by concurrent gravity sedimentation and magnetic separation
US-10006840-B2 · Jun 26, 2018 · US
Surfactant composition and method for treating bitumen froth
US-2018155628-A1 · Jun 7, 2018 · US
Separator device
US-2018099294-A1 · Apr 12, 2018 · US
Apparatus for sewage deep denitrification with high pollutant carrying capacity and low energy consumption, and method for running the same
US-2018099885-A1 · Apr 12, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D21/00?
- CPC B01D21/00 is the Cooperative Patent Classification code for “Separation of suspended solid particles from liquids by sedimentation ({separation of ores or the like by sedimentation B03B5/48 - B03B5/60} ; differential sedimentation B03D3/00; {purification of water, waste water, sewage or sludge C02F, e.g.} devices for separating or removing fatty or oily substances or similar floating material from water, waste water or sewage C02F1/40).”
- How many patents are filed under CPC B01D21/00 (Separation of suspended solid particles from liquids by sedimentation ({separation of ores or the like by sedimentation B03B5/48 - B03B5/60} ; differential sedimentation B03D3/00; {purification of water, waste water, sewage or sludge C02F, e.g.} devices for separating or removing fatty or oily substances or similar floating material from water, waste water or sewage C02F1/40))?
- Our database includes 117 publications tagged with this CPC code.
- Is patent activity under CPC B01D21/00 growing?
- Publication counts under this code: 5 in 2024 vs 5 in 2025 (latest complete years).