Ceramic nanofiltration membrane with polymers grafted into the pores and method of producing same
US-12569816-B2 · Mar 10, 2026 · US
Closing of pores, e.g. for membrane sealing
Closing of pores, e.g. for membrane sealing · 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 | B01D2323/286 |
| Official title | Closing of pores, e.g. for membrane sealing |
| Display label | Closing of pores, e.g. for membrane sealing |
| Total patents | 36 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 8 |
| 2019 | 8 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 1 |
| 2024 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Nanoparticles for use in membranes
US-12097471-B2 · Sep 24, 2024 · US
Pore-filled ion exchange polyelectrolyte composite membrane from which surface ion exchange polyelectrolyte has been removed and method for manufacturing same
US-11975296-B2 · May 7, 2024 · US
Ceramic proton-conducting membranes
US-2024058765-A1 · Feb 22, 2024 · US
Ceramic proton-conducting membranes
US-2022054985-A1 · Feb 24, 2022 · US
Ceramic nanofiltration membrane with polymers grafted into the pores and method of producing same
US-2021268451-A1 · Sep 2, 2021 · US
Pore-filled ion exchange polyelectrolyte composite membrane from which surface ion exchange polyelectrolyte has been removed and method for manufacturing same
US-2021237001-A1 · Aug 5, 2021 · US
Selective interfacial mitigation of graphene defects
US-10981120-B2 · Apr 20, 2021 · US
Method of forming reverse osmosis membrane
US-10751668-B2 · Aug 25, 2020 · US
Ceramic proton-conducting membranes
US-2020261856-A1 · Aug 20, 2020 · US
PVP- and/or PVL-containing composite membranes and methods of use
US-10737220-B2 · Aug 11, 2020 · US
Composite membranes with improved performance and/or durability and methods of use
US-2020030748-A1 · Jan 30, 2020 · US
Ceramic proton-conducting membranes
US-10537854-B2 · Jan 21, 2020 · US
Composite membranes with improved performance and/or durability and methods of use
US-10478778-B2 · Nov 19, 2019 · US
Method for preparation of hollow fiber membrane devices and the use thereof
US-2019184341-A1 · Jun 20, 2019 · US
Selective interfacial mitigation of graphene defects
US-2019143276-A1 · May 16, 2019 · US
Poly(aryl piperidinium) polymers for use as hydroxide exchange membranes and ionomers
US-10290890-B2 · May 14, 2019 · US
Techniques for performing diffusion-based filtration using nanoporous membranes and related systems and methods
US-2019070566-A1 · Mar 7, 2019 · US
Selective interfacial mitigation of graphene defects
US-10213746-B2 · Feb 26, 2019 · US
Poly(aryl piperidinium) polymers for use as hydroxide exchange membranes and ionomers
US-2019036143-A1 · Jan 31, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2323/286?
- CPC B01D2323/286 is the Cooperative Patent Classification code for “Closing of pores, e.g. for membrane sealing.”
- How many patents are filed under CPC B01D2323/286 (Closing of pores, e.g. for membrane sealing)?
- Our database includes 36 publications tagged with this CPC code.
- Is patent activity under CPC B01D2323/286 growing?
- Publication counts under this code: 1 in 2022 vs 3 in 2024 (latest complete years).