B01D 2252/2025
Ethers or esters of alkylene glycols
Official title: Ethers or esters of alkylene glycols, e.g. ethylene or propylene carbonate
B01D2252/2025 (Ethers or esters of alkylene glycols) appears on 73 US grants and 103 published applications in this corpus.
Search patents in B01D- Granted patents
- 73
- Published applications
- 103
- Assignees
- 66
- Inventors
- 218
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 6 |
| 2013 | 4 | 6 |
| 2014 | 3 | 8 |
| 2015 | 5 | 8 |
| 2016 | 6 | 12 |
| 2017 | 8 | 7 |
| 2018 | 12 | 13 |
| 2019 | 9 | 6 |
| 2020 | 8 | 9 |
| 2021 | 7 | 7 |
| 2022 | 4 | 2 |
| 2023 | 1 | 4 |
| 2024 | 4 | 7 |
| 2025 | 0 | 0 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hygroscopic hydrogels, methods and uses thereof for water collection20 Jan 2026US 12,528,766 B2University of Prince Edward Island
- Gas dehydration composition and process to reduce solvent losses29 Oct 2024US 12,128,353 B2Dow Global Technologies LLC
- Smoke capturing system and method23 Apr 2024US 11,964,228 B2
- Systems and methods for separating gases5 Mar 2024US 11,918,953 B2Innovator Energy, LLC
- Carbon dioxide absorbent and method for separating out carbon dioxide by using same16 Jan 2024US 11,872,519 B2Korea Carbon Capture & Sequestration R&D Center
- Non-aqueous solvent formulations for acid gas capture18 Jun 2026US 2026/0166475 A1Research Triangle Institute
- Acidic gas-absorbing liquid and acidic gas reduction method30 Apr 2026US 2026/0115646 A1AGC Inc.
- Non-Triazine Based Scavengers30 Apr 2026US 2026/0115648 A1ChampionX LLC
- Acidic gas-absorbing liquid and acidic gas reduction method30 Apr 2026US 2026/0115649 A1AGC Inc.
- Plant and method for producing carbon dioxide26 Mar 2026US 2026/0084094 A1Siemens Energy Global GmbH & Co. KG
Most cited
By later US patents
- Landfill gas treatment40US 8,840,708 B12014
- Integrated process for CO2 capture and use in thermal power production cycle21US 9,598,993 B2Saudi Arabian Oil Company · 2017
- Desiccant-based air conditioning system19US 8,943,844 B2Ducool Ltd. · 2015
- Process to remove product alcohol from a fermentation by vaporization under vacuum17US 8,628,643 B2Butamax Advanced Biofuels LLC · 2014
- Process to remove product alcohol from a fermentation by vaporization under vacuum14US 8,574,406 B2Butamax Advanced Biofuels LLC · 2013