B01D 2251/11
Air
B01D2251/11 (Air) appears on 126 US grants and 189 published applications in this corpus.
Search patents in B01D- Granted patents
- 126
- Published applications
- 189
- Assignees
- 129
- Inventors
- 466
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 3 | 9 |
| 2010 | 1 | 12 |
| 2011 | 4 | 11 |
| 2012 | 4 | 5 |
| 2013 | 10 | 9 |
| 2014 | 10 | 11 |
| 2015 | 10 | 9 |
| 2016 | 7 | 10 |
| 2017 | 6 | 6 |
| 2018 | 6 | 10 |
| 2019 | 10 | 17 |
| 2020 | 18 | 15 |
| 2021 | 10 | 14 |
| 2022 | 6 | 14 |
| 2023 | 7 | 9 |
| 2024 | 4 | 14 |
| 2025 | 6 | 7 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Boil-off management system30 Jun 2026US 12,669,222 B2MAGNA Energy Storage Systems GesmbH
- Optimising operating conditions in an abatement apparatus27 Jan 2026US 12,533,631 B2Edwards Limited
- Method to capture and utilize CO2 and an installation for capturing and utilizing CO24 Nov 2025US 12,460,143 B2Universiteit Gent
- Continuous process to treat a hydrogen sulphide comprising gas30 Sep 2025US 12,427,476 B2Paqell B.V.
- Two-dimensional catalytic materials derived from metal-organic frameworks for VOC remediation5 Aug 2025US 12,377,385 B2The Hong Kong University of Science and Technology
- Process for removing nitric oxide, nitrous oxide and carbon monoxide from a gas stream30 Jul 2026US 2026/0216642 A1BASF SE
- Catalytic oxidation reactors for the removal of low-level methane in air21 May 2026US 2026/0138088 A1Massachusetts Institute of Technology
- Gas abatement apparatus and gas treatment method9 Apr 2026US 2026/0097361 A1Kanken Techno Co., Ltd.
- Thermal oxidization systems and methods with greenhouse gas capture20 Nov 2025US 2025/0354687 A1
- Method and Application for Capturing and Converting Carbon Dioxide in Industrial Flue Gas7 Aug 2025US 2025/0249400 A1Linghangguochuang (Beijing) Technology Group Co., Ltd
Most cited
By later US patents
- Flue gas-treating method and apparatus for treating acidic tail gas by using ammonia process46US 9,370,745 B2Jiangsu New Century Jiangnan Environmental Protection Co., Ltd · 2016
- Methods and apparatus for smart abatement using an improved fuel circuit27US 8,668,868 B2APPLIED Materials.Inc. · 2014
- Catalysts to reduce carbon monoxide such as in the mainstream smoke of a cigarette19US 7,569,510 B2Philip Morris USA Inc. · 2009
- System and process for gas sweetening19US 8,071,046 B2H R D Corporation · 2011
- Catalyst for disinfection, sterilization and purification of air, and preparation method thereof18US 10,183,187 B2Shenzhen Kangfeng Environmental Technology Development Co., Ltd. · 2019