Polyethersulfone filtration membrane
US-9844756-B2 · Dec 19, 2017 · US
by selective elimination of components, e.g. by leaching
by selective elimination of components, e.g. by leaching · 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 | B01D67/003 |
| Official title | {by selective elimination of components, e.g. by leaching} |
| Display label | by selective elimination of components, e.g. by leaching |
| Total patents | 159 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 24 |
| 2016 | 20 |
| 2017 | 26 |
| 2018 | 18 |
| 2019 | 10 |
| 2020 | 13 |
| 2021 | 8 |
| 2022 | 9 |
| 2023 | 12 |
| 2024 | 11 |
| 2025 | 6 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
High throughput membrane with channels
US-9808770-B2 · Nov 7, 2017 · US
Porous polymeric membrane with high void volume
US-9776142-B2 · Oct 3, 2017 · US
Porous membrane
US-2017266626-A1 · Sep 21, 2017 · US
Porous polymeric membrane with high void volume
US-9764292-B2 · Sep 19, 2017 · US
Microporous polymeric membranes, battery separators, and production methods therefor
US-9744500-B2 · Aug 29, 2017 · US
Hollow fiber membrane having hexagonal voids
US-9737860-B2 · Aug 22, 2017 · US
Carbon film for fluid separation, fluid separation film module, and method for producing carbon film for fluid separation
US-2017216779-A1 · Aug 3, 2017 · US
Porous hydrophobic fluorine-containing polymer membrane and production methods thereof
US-2017174857-A1 · Jun 22, 2017 · US
Fluid Permeable Anodic Oxide Film and Fluid Permeable Body Using Anodic Oxide Film
US-2017167025-A1 · Jun 15, 2017 · US
Substrate for liquid filter and method for producing the same
US-2017151534-A1 · Jun 1, 2017 · US
Porous Resin Structures
US-2017151584-A1 · Jun 1, 2017 · US
Hydrocarbon Waste Stream Purification Processes Using Microporous Materials Having Filtration and Adsorption Properties
US-2017129789-A1 · May 11, 2017 · US
Charged hollow fiber membrane having hexagonal voids
US-9561473-B2 · Feb 7, 2017 · US
Fluid emulsion purification processes using microporous materials having filtration and adsorption properties
US-9546326-B2 · Jan 17, 2017 · US
Porous film manufacturing method and apparatus
US-9539547-B2 · Jan 10, 2017 · US
Method for preparing a porous fluoropolymer and preparing an article of same
US-2016375385-A1 · Dec 29, 2016 · US
Process for continuously washing a hollow fiber membrane for depleting residuals
US-9527040-B2 · Dec 27, 2016 · US
Melt processable poly(vinyl alcohol) blends and poly(vinyl alcohol) based membranes
US-9486746-B2 · Nov 8, 2016 · US
Method for preparing a porous fluoropolymer and preparing an article of same
US-9452372-B2 · Sep 27, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D67/003?
- CPC B01D67/003 is the Cooperative Patent Classification code for “by selective elimination of components, e.g. by leaching.”
- How many patents are filed under CPC B01D67/003 (by selective elimination of components, e.g. by leaching)?
- Our database includes 159 publications tagged with this CPC code.
- Is patent activity under CPC B01D67/003 growing?
- Publication counts under this code: 11 in 2024 vs 6 in 2025 (latest complete years).