B01D 2252/502
Having two or more functionalities in the same molecule other than alkanolamine
Official title: having two or more functionalities in the same molecule other than alkanolamine
B01D2252/502 (Having two or more functionalities in the same molecule other than alkanolamine) appears on 42 US grants and 54 published applications in this corpus.
Search patents in B01D- Granted patents
- 42
- Published applications
- 54
- Assignees
- 36
- Inventors
- 154
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2010 | 0 | 2 |
| 2011 | 0 | 3 |
| 2012 | 0 | 6 |
| 2013 | 6 | 5 |
| 2014 | 3 | 3 |
| 2015 | 2 | 4 |
| 2016 | 3 | 2 |
| 2017 | 8 | 5 |
| 2018 | 3 | 7 |
| 2019 | 6 | 4 |
| 2020 | 3 | 4 |
| 2021 | 0 | 0 |
| 2022 | 2 | 0 |
| 2023 | 1 | 4 |
| 2024 | 1 | 2 |
| 2025 | 0 | 1 |
| 2026 | 4 | 2 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Compositions and methods for scavenging hydrogen sulfide26 May 2026US 12,637,628 B2Foremark Performance Chemicals
- Compositions and methods for scavenging hydrogen sulfide26 May 2026US 12,637,629 B2Foremark Performance Chemicals
- Porous liquid, self-replenishing porous liquid and methods of making and using the same24 Mar 2026US 12,582,939 B2ExxonMobil Technology and Engineering Company
- Compositions and methods for removing sulfur compounds from process streams6 Jan 2026US 12,516,252 B2Vink Chemicals GmbH & Co. KG
- Compositions and methods for scavenging hydrogen sulfide2 Apr 2024US 11,946,008 B2Nexgen Oilfield Chemicals, LLC
- Compositions and Methods for Scavenging Hydrogen Sulfide10 Sep 2026US 2026/0265628 A1Foremark Performance Chemicals
- Acid gas absorbent, method for removing acid gas, and acid gas removal apparatus16 Apr 2026US 2026/0103448 A1Kabushiki Kaisha Toshiba
- Method for generating carbon dioxide8 May 2025US 2025/0145472 A1Kobe Gakuin Educational Foundation
- Compositions and Methods for Scavenging Hydrogen Sulfide11 Jul 2024US 2024/0228897 A1Foremark Performance Chemicals
- Compositions and Methods for Scavenging Hydrogen Sulfide11 Jul 2024US 2024/0228898 A1Foremark Performance Chemicals
Most cited
By later US patents
- CO2 recovery system and CO2 absorption liquid21US 8,568,520 B2Kabushiki Kaisha Toshiba · 2013
- System and process for capture of H2S from gaseous process streams and process for regeneration of the capture agent17US 8,652,237 B2Battelle Memorial Institute · 2014
- Sulfur recovery plant tail gas treatment process10US 8,524,184 B2ExxonMobil Research and Engineering Company · 2013
- Amine-containing absorption medium, process and apparatus for absorption of acidic gases from gas mixtures10US 8,784,537 B2Evonik Degussa GmbH · 2014
- Hydrogen sulfide scavengers7US 9,523,045 B2Ecolab USA Inc. · 2016