B01J 31/0298
The ionic liquids being characterised by the counter-anions
Official title: {the ionic liquids being characterised by the counter-anions}
B01J31/0298 (The ionic liquids being characterised by the counter-anions) appears on 82 US grants and 125 published applications in this corpus.
Search patents in B01J- Granted patents
- 82
- Published applications
- 125
- Assignees
- 67
- Inventors
- 276
- Latest grant
- 11 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 4 |
| 2008 | 0 | 0 |
| 2009 | 1 | 3 |
| 2010 | 4 | 5 |
| 2011 | 1 | 5 |
| 2012 | 1 | 4 |
| 2013 | 3 | 11 |
| 2014 | 3 | 3 |
| 2015 | 10 | 7 |
| 2016 | 6 | 5 |
| 2017 | 7 | 10 |
| 2018 | 3 | 13 |
| 2019 | 9 | 11 |
| 2020 | 12 | 4 |
| 2021 | 7 | 8 |
| 2022 | 3 | 2 |
| 2023 | 4 | 6 |
| 2024 | 5 | 8 |
| 2025 | 1 | 9 |
| 2026 | 0 | 4 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Method for recycling polyester fabrics with use of ionic liquid catalyst11 Nov 2025US 12,466,934 B2Nan Ya Plastics Corporation
- Ultrafast catalytic CO2 capture catalyzed by a novel ultrasound-treated ionic liquid17 Dec 2024US 12,168,202 B2Georgia Tech Research Corporation
- Method for the synthesis of polyethers1 Oct 2024US 12,104,015 B2Basque Center for Macromolecular Design and Engineering, Polymat Fundazioa
- Catalyst system for producing cyclic carbonates and method related thereto26 Mar 2024US 11,938,467 B2Ptt Exploration and Production Public Company Limited
- Catalyst system for producing cyclic carbonates and method related thereto26 Mar 2024US 11,938,468 B2Ptt Exploration and Production Public Company Limited
- A waste conversion method13 Aug 2026US 2026/0234477 A1Cyclion Holdings Pty Ltd
- Catalyst for depolymerizing polycarbonate-based resin, and decomposition method of polycarbonate-based resin, recovery method of catalyst for depolymerizing polycarbonate-based resin using the same5 Feb 2026US 2026/0034539 A1Korea University Research and Business Foundation
- Preparation method of ion catalyst material for pet chemical recycling and pet chemical recycling method8 Jan 2026US 2026/0008036 A1Nan Ya Plastics Corporation
- Method for preparing and separating alkylene carbonate using carbon dioxide in air8 Jan 2026US 2026/0008765 A1Korea Institute of Science and Technology
- Composition10 Jul 2025US 2025/0221408 A1Earth, Inc.
Most cited
By later US patents
- Electrocatalytic process for carbon dioxide conversion36US 9,555,367 B2Dioxide Materials, Inc. · 2017
- Regeneration of ionic liquid catalyst using a metal in the absence of added hydrogen31US 7,674,739 B2Chevron U.S.A.Inc. · 2010
- Regeneration of acidic catalysts31US 7,732,363 B2Chevron U.S.A.Inc. · 2010
- Electrocatalysts for carbon dioxide conversion31US 9,012,345 B2Dioxide Materials, Inc. · 2015
- Catalyst and process for preparing low-viscosity and color-reduced polyisocyanates containing isocyanurate groups21US 6,613,863 B2Degussa AG · 2003