Preparation method of reverse osmosis composite membrane and reverse osmosis composite membrane prepared thereby
US-2024024827-A1 · Jan 25, 2024 · US
Support pretreatment
Support pretreatment · 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 | B01D69/105 |
| Official title | {Support pretreatment} |
| Display label | Support pretreatment |
| Total patents | 280 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 15 |
| 2017 | 23 |
| 2018 | 22 |
| 2019 | 26 |
| 2020 | 40 |
| 2021 | 29 |
| 2022 | 27 |
| 2023 | 28 |
| 2024 | 27 |
| 2025 | 20 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Porous membrane and membrane support with integrated high permeability barrier
US-2018319943-A1 · Nov 8, 2018 · US
Ceramic proton-conducting membranes
US-2018090777-A1 · Mar 29, 2018 · US
Method of preparing thin film composite forward osmosis membranes using polyethylene porous supports
US-2018008939-A1 · Jan 11, 2018 · US
Polyamide water-treatment separation membrane having superior oxidation resistance and chlorine resistance properties, and method of manufacturing the same
US-9833751-B2 · Dec 5, 2017 · US
Method for preparing antibacterial and dust-removal membrane
US-9815029-B2 · Nov 14, 2017 · US
Membranes
US-9808771-B2 · Nov 7, 2017 · US
Selective interfacial mitigation of graphene defects
US-2017296976-A1 · Oct 19, 2017 · US
Method for manufacturing polyamide-based water-treatment separator having excellent permeation flux characteristics and water-treatment separator manufactured by same
US-2017291990-A1 · Oct 12, 2017 · US
Porous polymeric membrane with high void volume
US-9776142-B2 · Oct 3, 2017 · US
Method for Preparing Antibacterial and Dust-removal Membrane
US-2017259213-A1 · Sep 14, 2017 · US
Methods of enhancing water flux of a tfc membrane using oxidizing and reducing agents
US-2017252705-A1 · Sep 7, 2017 · US
Forward osmosis membrane and forward osmosis treatment system
US-2017225131-A1 · Aug 10, 2017 · US
Method for manufacturing zeolite membrane structure
US-2017225130-A1 · Aug 10, 2017 · US
Hollow porous membrane
US-9694327-B2 · Jul 4, 2017 · US
Microporous articles with a three-dimensional porous network of acid-sintered interconnected silica nanoparticles and methods of making the same
US-2017173535-A1 · Jun 22, 2017 · US
Robust carbon nanotube membranes and methods of making the same
US-2017165612-A1 · Jun 15, 2017 · US
Solvent resistant polyamide nanofiltration membranes
US-2017157567-A1 · Jun 8, 2017 · US
Asymmetric articles with a porous substrate and a polymeric coating extending into the substrate and methods of making the same
US-2017144111-A1 · May 25, 2017 · US
Systems and methods of preparing stabilized lipid assemblies
US-2017120218-A1 · May 4, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D69/105?
- CPC B01D69/105 is the Cooperative Patent Classification code for “Support pretreatment.”
- How many patents are filed under CPC B01D69/105 (Support pretreatment)?
- Our database includes 280 publications tagged with this CPC code.
- Is patent activity under CPC B01D69/105 growing?
- Publication counts under this code: 27 in 2024 vs 20 in 2025 (latest complete years).