Barriers including molecules covalently bonded to amphiphilic molecules, and methods of making the same
US-2023381718-A1 · Nov 30, 2023 · US
Separate manufacturing of ultra-thin membranes
Separate manufacturing of ultra-thin membranes · 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 | B01D69/122 |
| Official title | {Separate manufacturing of ultra-thin membranes} |
| Display label | Separate manufacturing of ultra-thin membranes |
| Total patents | 67 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 7 |
| 2017 | 7 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 11 |
| 2021 | 7 |
| 2022 | 9 |
| 2023 | 6 |
| 2024 | 2 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Water vapor-permeable composite material
US-11739475-B2 · Aug 29, 2023 · US
Method for directly growing ultrathin porous graphene separation membrane
US-11701621-B2 · Jul 18, 2023 · US
Method of forming a laminated single layer composite membrane
US-11701623-B2 · Jul 18, 2023 · US
High-performance thin-film composite polyamide membrane upcylcled from biopolymer-fouled substrates and preparation method thereof
US-11590455-B2 · Feb 28, 2023 · US
Porous Polybenzimidazole Membrane Supports for Composite Membranes
US-2023024915-A1 · Jan 26, 2023 · US
Nanofiber filtered films and soluble substrate processing
US-2022363543-A1 · Nov 17, 2022 · US
Water vapor-permeable composite material
US-2022349119-A1 · Nov 3, 2022 · US
Patterned nanofiber arrays assembled through patterned filtration
US-2022250009-A1 · Aug 11, 2022 · US
Ceramic support, zeolite membrane complex, method of producing zeolite membrane complex, and separation method
US-11400422-B2 · Aug 2, 2022 · US
Additive manufacturing of self-assembled polymer films
US-2022226783-A1 · Jul 21, 2022 · US
Method for synthesis of flexible multifunctional high-voidage ultrathin PE membranes
US-11389772-B2 · Jul 19, 2022 · US
Ultrathin Membrane Fabrication
US-2022219124-A1 · Jul 14, 2022 · US
Thin wall polyether block amide membrane tubing and module
US-11318421-B2 · May 3, 2022 · US
Composite films and methods of making and use thereof
US-2022008871-A1 · Jan 13, 2022 · US
Solvent activation process for enhancing the separation performance of thin film composite membranes
US-2021394124-A1 · Dec 23, 2021 · US
Method of forming a laminated single layer composite membrane
US-2021354092-A1 · Nov 18, 2021 · US
Water treatment membrane and method for manufacturing same
US-11173455-B2 · Nov 16, 2021 · US
High-performance thin-film composite polyamide membrane upcylcled from biopolymer-fouled substrates and preparation method thereof
US-2021213392-A1 · Jul 15, 2021 · US
Ultrathin-film composite membrane based on thermally rearranged poly(benzoxazole-imide) copolymer, and production method therefor
US-2021178338-A1 · Jun 17, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D69/122?
- CPC B01D69/122 is the Cooperative Patent Classification code for “Separate manufacturing of ultra-thin membranes.”
- How many patents are filed under CPC B01D69/122 (Separate manufacturing of ultra-thin membranes)?
- Our database includes 67 publications tagged with this CPC code.
- Is patent activity under CPC B01D69/122 growing?
- Publication counts under this code: 2 in 2024 vs 4 in 2025 (latest complete years).