Extractor and related methods
US-11458415-B2 · Oct 4, 2022 · US
Multistage extraction
Multistage extraction · 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 | B01D11/0284 |
| Official title | {Multistage extraction} |
| Display label | Multistage extraction |
| Total patents | 113 |
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 | 2 |
| 2017 | 5 |
| 2018 | 9 |
| 2019 | 13 |
| 2020 | 13 |
| 2021 | 13 |
| 2022 | 13 |
| 2023 | 13 |
| 2024 | 16 |
| 2025 | 8 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and system for tissue treatment with critical/supercritical carbon dioxide
US-2022017868-A1 · Jan 20, 2022 · US
Recovery of critical elements from end-of-life lithium ion batteries with supported membrane solvent extraction
US-2021376400-A1 · Dec 2, 2021 · US
Plant extract compositions and methods of preparation thereof
US-11160287-B2 · Nov 2, 2021 · US
Method and system for tissue treatment with critical/supercritical carbon dioxide
US-11136550-B2 · Oct 5, 2021 · US
Plant extract compositions for forming protective coatings
US-2021291074-A1 · Sep 23, 2021 · US
Apparatus for parallel accelerated solvent extraction
US-11123655-B2 · Sep 21, 2021 · US
Plant extract compositions for forming protective coatings
US-11028030-B2 · Jun 8, 2021 · US
Ultrasonic-Assisted Pretreatment Method for Extraction of Multiple Steroid Hormones in Sediment
US-2021163525-A1 · Jun 3, 2021 · US
Extractor And Related Methods
US-2021138360-A1 · May 13, 2021 · US
Plant extract compositions and methods of preparation thereof
US-10959442-B2 · Mar 30, 2021 · US
Method for purifying reclaimed polyethylene
US-10941269-B2 · Mar 9, 2021 · US
A process for the conversion of a solid lignocellulosic material
US-2021032216-A1 · Feb 4, 2021 · US
Method for purifying reclaimed polypropylene
US-10899906-B2 · Jan 26, 2021 · US
Method of converting plastic waste into useful stock
US-10894870-B2 · Jan 19, 2021 · US
Solid Phase Extraction Method Using Micro Device
US-2020376410-A1 · Dec 3, 2020 · US
Extractor and related methods
US-10843103-B2 · Nov 24, 2020 · US
Microwave assisted extraction of essential oils from plant biomass
US-2020347318-A1 · Nov 5, 2020 · US
Device and method for the high-pressure treatment of bulk material by extraction and/or impregnation and use
US-2020324223-A1 · Oct 15, 2020 · US
Plant extract compositions and methods of preparation thereof
US-2020229455-A1 · Jul 23, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D11/0284?
- CPC B01D11/0284 is the Cooperative Patent Classification code for “Multistage extraction.”
- How many patents are filed under CPC B01D11/0284 (Multistage extraction)?
- Our database includes 113 publications tagged with this CPC code.
- Is patent activity under CPC B01D11/0284 growing?
- Publication counts under this code: 16 in 2024 vs 8 in 2025 (latest complete years).