B01D 2252/20473
Containing an imidazole-ring
Official title: containing an imidazole-ring
B01D2252/20473 (Containing an imidazole-ring) appears on 41 US grants and 53 published applications in this corpus.
Search patents in B01D- Granted patents
- 41
- Published applications
- 53
- Assignees
- 37
- Inventors
- 141
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 7 |
| 2013 | 5 | 3 |
| 2014 | 4 | 3 |
| 2015 | 1 | 2 |
| 2016 | 2 | 4 |
| 2017 | 4 | 8 |
| 2018 | 4 | 2 |
| 2019 | 5 | 5 |
| 2020 | 1 | 3 |
| 2021 | 3 | 3 |
| 2022 | 3 | 3 |
| 2023 | 1 | 1 |
| 2024 | 2 | 3 |
| 2025 | 5 | 2 |
| 2026 | 1 | 2 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Composition for carbon dioxide absorption31 Mar 2026US 12,589,350 B2Nihon University
- Hydrophobic MOF-based porous liquid carbon capture absorbent and preparation method therefor16 Dec 2025US 12,496,548 B2Huaneng Clean Energy Research Institute
- Compositions and methods for carbon dioxide capture4 Nov 2025US 12,458,920 B2The Board of Trustees of the University of Illinois
- Gas treating solutions containing imidazole-amine compounds and methods of making the same30 Sep 2025US 12,428,381 B2The Board of Trustees of The University of Alabama
- Process and system for capture of carbon dioxide1 Jul 2025US 12,343,676 B2Commonwealth Scientific and Industrial Research Organisation
- Compositions, articles, and methods related to redox-active sorbents for electrochemical carbon dioxide separation25 Jun 2026US 2026/0175168 A1Massachusetts Institute of Technology
- Electrochemical systems for capture of acid gases12 Feb 2026US 2026/0042063 A1
- Carbon Dioxide Absorbing Composition, Method of Absorbing Carbon Dioxide and Method of Separating Carbon Dioxide Using the Same13 Mar 2025US 2025/0083125 A1SK Innovation Co., Ltd.
- Composition for carbon dioxide absorption16 Jan 2025US 2025/0018330 A1Nihon University
- Process and system for capture of carbon dioxide21 Nov 2024US 2024/0382898 A1Commonwealth Scientific and Industrial Research Organisation
Most cited
By later US patents
- Separations with ionic liquid solvents14US 9,238,193 B2Chevron Phillips Chemical Company LP · 2016
- N-functionalized imidazole-containing systems and methods of use10US 8,506,914 B2The Board of Trustees of The University of Alabama · 2013
- Acidic gas absorbent, acidic gas removal device, and acidic gas removal method6US 8,506,913 B2Kabushiki Kaisha Toshiba · 2013
- Process and absorbent for dehumidifying moist gas mixtures5US 10,105,644 B2Evonik Degussa GmbH · 2018
- Acid gas absorbent composition4US 8,765,951 B2Nalco Company · 2014