B01D 2323/21819
Carbon, carbon nanotubes, graphene or derivatives thereof
B01D2323/21819 (Carbon, carbon nanotubes, graphene or derivatives thereof) appears on 7 US grants and 27 published applications in this corpus.
Search patents in B01D- Granted patents
- 7
- Published applications
- 27
- Assignees
- 22
- Inventors
- 92
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2014 | 0 | 1 |
| 2015 | 0 | 2 |
| 2016 | 1 | 0 |
| 2017 | 2 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 8 |
| 2024 | 1 | 4 |
| 2025 | 2 | 7 |
| 2026 | 1 | 5 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Method for producing gas separation membrane, and gas separation membrane10 Feb 2026US 12,544,720 B2Shinshu University
- Gas separation membrane and gas separation membrane module25 Nov 2025US 12,478,926 B2Toray Industries, Inc.
- Process for obtaining polyamide membrane with nanostructured coating, membranes and use21 Oct 2025US 12,447,441 B2Petroleo Brasileiro S.A. - Petrobras
- Seawater desalination reverse osmosis membrane with both water flux and boron removal rate and its preparation method thereof3 Dec 2024US 12,157,092 B1China Agricultural University
- Membrane comprising self-assembled block copolymer and process for producing the same by spray coating (Ic)11 Apr 2017US 9,616,395 B2Pall Corporation
- Polymer composite thin film, gas separation body provided with polymer composite thin film, gas separation device provided with polymer composite thin film, and manufacturing method for polymer composite thin film30 Jul 2026US 2026/0216663 A1NanoMembrane Technologies, Inc.
- Membranes for co2 capture2 Jul 2026US 2026/0183702 A1
- Systems and methods for processing black liquor solutions18 Jun 2026US 2026/0168171 A1
- Nanofiltration membrane for micropollutant removal4 Jun 2026US 2026/0151744 A1King Fahd University of Petroleum and Minerals
- Method for separation of a water-in-oil emulsion26 Feb 2026US 2026/0054231 A1King Fahd University of Petroleum and Minerals
Most cited
By later US patents