Separation of mixed xylenes
US-10150083-B2 · Dec 11, 2018 · US
Palladium
Palladium · 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 | B01D71/02231 |
| Official title | {Palladium} |
| Display label | Palladium |
| Total patents | 183 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 22 |
| 2016 | 10 |
| 2017 | 21 |
| 2018 | 17 |
| 2019 | 22 |
| 2020 | 23 |
| 2021 | 18 |
| 2022 | 12 |
| 2023 | 10 |
| 2024 | 12 |
| 2025 | 13 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Porous membrane and membrane support with integrated high permeability barrier
US-2018319943-A1 · Nov 8, 2018 · US
Transfer line
US-10105658-B2 · Oct 23, 2018 · US
Scalable multiple-inverse diffusion flame burner for synthesis and processing of carbon-based and other nanostructured materials and films and fuels
US-10099928-B2 · Oct 16, 2018 · US
Method using carbon monoxide resistant membrance to control h2/co ratio of synthesis gas feed to fischer-tropsch unit
US-2018065080-A1 · Mar 8, 2018 · US
Isotope separation methods and systems
US-2018056240-A1 · Mar 1, 2018 · US
Filtration filter
US-2018021737-A1 · Jan 25, 2018 · US
Transfer line
US-2017312701-A1 · Nov 2, 2017 · US
Hydrogen purification device and hydrogen purification system using hydrogen purification device
US-2017291134-A1 · Oct 12, 2017 · US
Catalytic membrane system for converting biomass to hydrogen
US-2017283721-A1 · Oct 5, 2017 · US
Hydrogen separation membrane, and method for manufacturing same
US-9751051-B2 · Sep 5, 2017 · US
Separation membrane structure
US-2017225129-A1 · Aug 10, 2017 · US
Chemical additives for water flux enhancement
US-9724651-B2 · Aug 8, 2017 · US
Scalable Multiple-Inverse Diffusion Flame Burner for Synthesis and Processing of Carbon-Based and Other Nanostructured Materials and Films and Fuels
US-2017210628-A1 · Jul 27, 2017 · US
Filtration filter
US-2017203260-A1 · Jul 20, 2017 · US
Chemically stable ceramic-metal composite membrane for hydrogen separation
US-9687775-B2 · Jun 27, 2017 · US
Reverse osmosis membranes and separations
US-2017144106-A1 · May 25, 2017 · US
Hydrocarbon reverse osmosis membranes and separations
US-2017136420-A1 · May 18, 2017 · US
Separation of mixed xylenes
US-2017137350-A1 · May 18, 2017 · US
Hydrogen-releasing film
US-2017133648-A1 · May 11, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D71/02231?
- CPC B01D71/02231 is the Cooperative Patent Classification code for “Palladium.”
- How many patents are filed under CPC B01D71/02231 (Palladium)?
- Our database includes 183 publications tagged with this CPC code.
- Is patent activity under CPC B01D71/02231 growing?
- Publication counts under this code: 12 in 2024 vs 13 in 2025 (latest complete years).