B01D 2258/06
Polluted air
B01D2258/06 (Polluted air) appears on 1,566 US grants and 2,851 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,566
- Published applications
- 2,851
- Assignees
- 1,302
- Inventors
- 5,572
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 1 |
| 2002 | 1 | 3 |
| 2003 | 4 | 4 |
| 2004 | 3 | 6 |
| 2005 | 4 | 9 |
| 2006 | 3 | 5 |
| 2007 | 4 | 8 |
| 2008 | 4 | 11 |
| 2009 | 4 | 17 |
| 2010 | 17 | 36 |
| 2011 | 11 | 76 |
| 2012 | 31 | 65 |
| 2013 | 44 | 77 |
| 2014 | 43 | 72 |
| 2015 | 62 | 81 |
| 2016 | 61 | 102 |
| 2017 | 75 | 138 |
| 2018 | 88 | 135 |
| 2019 | 104 | 154 |
| 2020 | 115 | 150 |
| 2021 | 106 | 203 |
| 2022 | 138 | 258 |
| 2023 | 159 | 314 |
| 2024 | 162 | 291 |
| 2025 | 172 | 391 |
| 2026 | 98 | 244 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High throughput moving panel direct air capture system6 Oct 2026US 12,752,238 B2Zero Carbon Systems, Inc.
- Systems and methods for collecting fats, oils, and grease from updraft ventilators29 Sep 2026US 12,746,503 B1
- Carbon dioxide removal apparatus29 Sep 2026US 12,746,504 B2Honda Motor Co., Ltd.
- Carbon capture entrainment system and method29 Sep 2026US 12,746,507 B2Purdue Research Foundation
- Device and method for passive collection of atmospheric carbon dioxide with a double-walled harvest chamber29 Sep 2026US 12,746,508 B2Arizona Board of Regents on behalf of Arizona State University
- Method of extraction of a gaseous or vapor component from compressed air8 Oct 2026US 2026/0306997 A1Consiglio Nazionale Delle Ricerche
- Direct air capture of carbon dioxide with nanofluidic flows8 Oct 2026US 2026/0307002 A1National Technology & Engineering Solutions of Sandia, LLC
- Amine compound, amine composition, carbon dioxide absorbent, method for recovering carbon dioxide, and carbon dioxide separation and recovery device8 Oct 2026US 2026/0307005 A1Mitsubishi Gas Chemical Company, Inc.
- Air Treatment System8 Oct 2026US 2026/0307008 A1Universiteit Antwerpen
- Membrane Supporting Structures8 Oct 2026US 2026/0307017 A1Memzyme, LLC
Most cited
By later US patents
- Remedial system: a pollution control device for utilizing and abating volatile organic compounds178US 8,776,734 B1Innovative Environmental Solutions, LLC · 2014
- Method and apparatus for extracting carbon dioxide from air125US 7,708,806 B2Global Research Technologies, LLC · 2010
- Process for the purification of natural gas100US 5,174,796 AUop LLC · 1992
- Modular pressure swing adsorption process and apparatus81US 6,918,953 B2H2Gen Innovations, Inc. · 2005
- Natural gas liquefaction with improved nitrogen removal79US 6,631,626 B1ConocoPhillips Company · 2003