B01D 2252/20457
Containing a pyridine-ring
Official title: containing a pyridine-ring
B01D2252/20457 (Containing a pyridine-ring) appears on 19 US grants and 25 published applications in this corpus.
Search patents in B01D- Granted patents
- 19
- Published applications
- 25
- Assignees
- 15
- Inventors
- 48
- Latest grant
- 1 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2012 | 0 | 2 |
| 2013 | 1 | 0 |
| 2014 | 0 | 3 |
| 2015 | 1 | 0 |
| 2016 | 2 | 1 |
| 2017 | 0 | 1 |
| 2018 | 3 | 1 |
| 2019 | 1 | 7 |
| 2020 | 4 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
| 2023 | 2 | 2 |
| 2024 | 2 | 2 |
| 2025 | 1 | 1 |
| 2026 | 0 | 2 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Process and system for capture of carbon dioxide1 Jul 2025US 12,343,676 B2Commonwealth Scientific and Industrial Research Organisation
- Process for regenerating a liquid absorbent6 Aug 2024US 12,053,736 B2Commonwealth Scientific and Industrial Research Organisation
- Process and system for capture of carbon dioxide2 Jul 2024US 12,023,624 B2Commonwealth Scientific and Industrial Research Organisation
- Process for regenerating a liquid absorbent21 Mar 2023US 11,607,642 B2Commonwealth Scientific and Industrial Research Organisation
- Process and system for capture of carbon dioxide14 Mar 2023US 11,602,714 B2Commonweath Scientific and Industrial Research Organisation
- Carbon dioxide absorbent containing ionic material containing cyclic ammonium cation and hydroxide anion, and carbon dioxide separation method using the same23 Apr 2026US 2026/0108843 A1SK Innovation Co., Ltd.
- Electrochemical systems for capture of acid gases12 Feb 2026US 2026/0042063 A1
- Process for regenerating a liquid absorbent14 Aug 2025US 2025/0256237 A1Commonwealth Scientific and Industrial Research Organisation
- Process and system for capture of carbon dioxide21 Nov 2024US 2024/0382898 A1Commonwealth Scientific and Industrial Research Organisation
- Electrochemical target species capture with a redox-active amine19 Sep 2024US 2024/0307819 A1Massachusetts Institute of Technology
Most cited
By later US patents
- Acidic gas absorbent, acidic gas removal device, and acidic gas removal method6US 8,506,913 B2Kabushiki Kaisha Toshiba · 2013
- Capture and release of acid gasses using tunable organic solvents with aminopyridine2US 10,130,907 B2Battelle Memorial Institute · 2018
- Guanidine compounds for removal of oxyanions from aqueous solutions and for carbon dioxide capture2US 10,633,332 B2UT-Battelle, LLC · 2020
- Gas prepurification process2US 9,221,008 B2Linde Aktiengesellschaft · 2015
- Process and system for capture of carbon dioxide1US 11,123,684 B2Commonwealth Scientific and Industrial Research Organisation · 2021