Porous medium with adjustable fluid permeability and associated systems and methods
US-11872525-B2 · Jan 16, 2024 · US
Nickel
Nickel · 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 | B01D71/02232 |
| Official title | {Nickel} |
| Display label | Nickel |
| Total patents | 113 |
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 | 15 |
| 2016 | 7 |
| 2017 | 19 |
| 2018 | 13 |
| 2019 | 15 |
| 2020 | 12 |
| 2021 | 13 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 6 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Filtration filter
US-10399042-B2 · Sep 3, 2019 · US
Cell filtration filter
US-2019185804-A1 · Jun 20, 2019 · US
Robust carbon nanotube membranes and methods of making the same
US-10279318-B2 · May 7, 2019 · US
Thin-sheet zeolite membrane and methods for making the same
US-10265660-B2 · Apr 23, 2019 · US
Mixed matrix membrane, a method of making thereof, and a method for gas separation
US-10188981-B2 · Jan 29, 2019 · US
Cell-capturing filter
US-2018353881-A1 · Dec 13, 2018 · US
Separation of mixed xylenes
US-10150083-B2 · Dec 11, 2018 · US
Filter for filtering nucleated cells and filtering method using the same
US-2018312803-A1 · Nov 1, 2018 · US
Mixed matrix membrane, a method of making thereof, and a method for gas separation
US-2018304193-A1 · Oct 25, 2018 · US
Transfer line
US-10105658-B2 · Oct 23, 2018 · US
Separation membrane, hydrogen separation membrane including the separation membrane, and method of manufacturing the separation membrane
US-10105657-B2 · Oct 23, 2018 · US
Membranes and methods of use thereof
US-2018264414-A1 · Sep 20, 2018 · US
Compositions of graphene materials with metal nanostructures and microstructures and methods of making and using including pressure sensors
US-2018207590-A1 · Jul 26, 2018 · US
Liquid-dissolved gas separators
US-10029191-B2 · Jul 24, 2018 · US
Antifouling membrane filtration system
US-2018104653-A1 · Apr 19, 2018 · US
Method of making a gold on palladium gas separation membrane
US-2018104657-A1 · Apr 19, 2018 · US
Liquid-dissolved gas separators
US-2018071659-A1 · Mar 15, 2018 · US
Filtration filter
US-2018021737-A1 · Jan 25, 2018 · US
Cell-capturing device
US-2017356898-A1 · Dec 14, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D71/02232?
- CPC B01D71/02232 is the Cooperative Patent Classification code for “Nickel.”
- How many patents are filed under CPC B01D71/02232 (Nickel)?
- Our database includes 113 publications tagged with this CPC code.
- Is patent activity under CPC B01D71/02232 growing?
- Publication counts under this code: 6 in 2024 vs 3 in 2025 (latest complete years).