B01D 53/885
Devices in general for catalytic purification of waste gases
Official title: {Devices in general for catalytic purification of waste gases}
B01D53/885 (Devices in general for catalytic purification of waste gases) appears on 679 US grants and 858 published applications in this corpus.
Search patents in B01D- Granted patents
- 679
- Published applications
- 858
- Assignees
- 520
- Inventors
- 2,018
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 12 | 0 |
| 1997 | 11 | 0 |
| 1998 | 20 | 0 |
| 1999 | 17 | 0 |
| 2000 | 10 | 0 |
| 2001 | 32 | 12 |
| 2002 | 17 | 41 |
| 2003 | 31 | 67 |
| 2004 | 29 | 42 |
| 2005 | 28 | 49 |
| 2006 | 26 | 39 |
| 2007 | 14 | 16 |
| 2008 | 21 | 23 |
| 2009 | 20 | 30 |
| 2010 | 28 | 21 |
| 2011 | 17 | 20 |
| 2012 | 13 | 21 |
| 2013 | 18 | 17 |
| 2014 | 11 | 20 |
| 2015 | 23 | 26 |
| 2016 | 16 | 20 |
| 2017 | 10 | 19 |
| 2018 | 21 | 23 |
| 2019 | 24 | 29 |
| 2020 | 19 | 50 |
| 2021 | 27 | 59 |
| 2022 | 30 | 48 |
| 2023 | 32 | 61 |
| 2024 | 35 | 41 |
| 2025 | 26 | 40 |
| 2026 | 27 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Photocatalytic air treatment29 Sep 2026US 12,746,509 B2Dyson Technology Limited
- Photocatalyst filter and electronic device comprising same15 Sep 2026US 12,734,266 B2Samsung Electronics Co., Ltd.
- Filter for air purification and manufacturing method thereof15 Sep 2026US 12,734,512 B2Hyundai Motor Company
- Ozone catalytic elimination device and plasma beauty instrument1 Sep 2026US 12,722,021 B2Shenzhen Leaflife Technology Co., Ltd.
- Air purifier with air treatment basket30 Jun 2026US 12,667,809 B2BISSELL Inc.
- Air Treatment System8 Oct 2026US 2026/0307008 A1Universiteit Antwerpen
- Odor reducing systems for composter assembly10 Sep 2026US 2026/0264012 A1VCycene Inc.
- Gas treatment system, semiconductor process system including the same, and gas treatment method using the same10 Sep 2026US 2026/0264013 A1Samsung Electronics Co., Ltd.
- Honeycomb structure20 Aug 2026US 2026/0241375 A1NGK Insulators, Ltd.
- Fluid reactor device, method for operating a fluid reactor device, method for maintaining a fluid reactor device and method for installing a fluid reactor device30 Jul 2026US 2026/0216640 A1Dürr Systems AG
Most cited
By later US patents
- Catalytic converter having a metallic monolith mounted by a heat-insulating mat of refractory ceramic fibers154US 5,250,269 AMinnesota Mining and Manufacturing Company · 1993
- Photoelectrochemical device containing a quantum confined group IV semiconductor nanoparticle133US 6,361,660 B12002
- Titanium dioxide photo-catalyzer130US 5,919,422 AToyoda Gosei Co., Ltd. · 1999
- Architectural material using metal oxide exhibiting photocatalytic activity112US 5,595,813 ATakenaka Corporation · 1997
- Catalyst retaining apparatus and use in an ozone filter103US 5,891,402 AW. L. Gore & Associates, Inc. · 1999