Permselective membrane, method for producing same, and water treatment method using the permselective membrane
US-10583405-B2 · Mar 10, 2020 · US
Polymer pretreatment in the casting solutions
Polymer pretreatment in the casting solutions · 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 | B01D67/00111 |
| Official title | {Polymer pretreatment in the casting solutions} |
| Display label | Polymer pretreatment in the casting solutions |
| Total patents | 169 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 4 |
| 2017 | 9 |
| 2018 | 15 |
| 2019 | 22 |
| 2020 | 22 |
| 2021 | 21 |
| 2022 | 18 |
| 2023 | 13 |
| 2024 | 16 |
| 2025 | 16 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing a polyphenylsulfone porous hollow fiber membrane
US-2019374909-A1 · Dec 12, 2019 · US
Hollow fiber membrane and method of preparing the same
US-10471395-B2 · Nov 12, 2019 · US
Improved method to make carbon molecular sieve hollow fiber membranes
US-2019275471-A1 · Sep 12, 2019 · US
Fabrication of filtration membranes
US-2019262781-A1 · Aug 29, 2019 · US
Method of making improved polyimide separation membranes
US-2019247806-A1 · Aug 15, 2019 · US
Acrylonitrile-based membrane with low thrombogenicity
US-2019224631-A1 · Jul 25, 2019 · US
A method for directly growing ultrathin porous graphene separation membrane
US-2019176094-A1 · Jun 13, 2019 · US
Hybrid polymeric hollow fiber membrane, hybrid carbon molecular sieve hollow fiber membrane, and processes for preparing the same
US-2019176090-A1 · Jun 13, 2019 · US
Porous membranes
US-2019168174-A1 · Jun 6, 2019 · US
Separation membranes
US-2019126208-A1 · May 2, 2019 · US
Polysulfone-Urethane Copolymer, Membranes And Products Incorporating Same, And Methods For Making And Using Same
US-2019106545-A1 · Apr 11, 2019 · US
Porous asymmetric polyphenylene ether membranes and associated separation modules and methods
US-10252221-B2 · Apr 9, 2019 · US
Porous asymmetric polyphenylene ether membranes and associated separation modules and methods
US-10252220-B2 · Apr 9, 2019 · US
Method for preparing aromatic polyamide porous membrane and aromatic polyamide porous membrane prepared thereby
US-2019097196-A1 · Mar 28, 2019 · US
High selectivity facilitated transport membrane comprising polyethersulfone/polyethylene oxide-polysilsesquioxane blend membrane for olefin/paraffin separations
US-2019060841-A1 · Feb 28, 2019 · US
Composite membrane with support comprising poly(phenylene ether) and amphilphilic polymer; method of making; and separation module thereof
US-10207230-B2 · Feb 19, 2019 · US
Permselective membrane, method for producing same, and water treatment method using the permselective membrane
US-2019046933-A1 · Feb 14, 2019 · US
Separation membrane
US-2019046931-A1 · Feb 14, 2019 · US
Methods for preparing carbon molecular sieve hollow fiber membranes for gas separation
US-2019030491-A1 · Jan 31, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D67/00111?
- CPC B01D67/00111 is the Cooperative Patent Classification code for “Polymer pretreatment in the casting solutions.”
- How many patents are filed under CPC B01D67/00111 (Polymer pretreatment in the casting solutions)?
- Our database includes 169 publications tagged with this CPC code.
- Is patent activity under CPC B01D67/00111 growing?
- Publication counts under this code: 16 in 2024 vs 16 in 2025 (latest complete years).