B01D 53/925
Simultaneous elimination of carbon monoxide or hydrocarbons and nitrogen oxides
Official title: {Simultaneous elimination of carbon monoxide or hydrocarbons and nitrogen oxides}
B01D53/925 (Simultaneous elimination of carbon monoxide or hydrocarbons and nitrogen oxides) appears on 38 US grants and 49 published applications in this corpus.
Search patents in B01D- Granted patents
- 38
- Published applications
- 49
- Assignees
- 27
- Inventors
- 111
- Latest grant
- 17 Jan 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 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 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 2 | 5 |
| 2010 | 0 | 6 |
| 2011 | 2 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 3 | 4 |
| 2015 | 4 | 0 |
| 2016 | 1 | 3 |
| 2017 | 1 | 1 |
| 2018 | 2 | 2 |
| 2019 | 3 | 1 |
| 2020 | 3 | 5 |
| 2021 | 1 | 8 |
| 2022 | 2 | 5 |
| 2023 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Exhaust gas treatment by thermal diffusion17 Jan 2023US 11,555,434 B1Saudi Arabian Oil Company
- Electrochemical reactor14 Jun 2022US 11,358,095 B2Toyota Jidosha Kabushiki Kaisha
- Electrochemical reactor10 May 2022US 11,325,067 B2Toyota Jidosha Kabushiki Kaisha
- Exhaust gas purifying agent for automobiles and method of producing thereof16 Feb 2021US 10,919,022 B2Eishin Co., Ltd.
- Exhaust gas pollution control fluid comprising a soluble basic metal carbonate, process for preparing same and use thereof for internal- combustion engines29 Dec 2020US 10,874,984 B2Ifp Energies Nouvelles
- Diesel oxidation catalyst with enhanced hydrocarbon light-off properties23 Nov 2023US 2023/0372905 A1BASF SE
- Exhaust gas processing system and method1 Sep 2022US 2022/0275739 A1Shanghai Bixiufu Enterprise Management Co., Ltd.
- Engine exhaust gas treatment system and method11 Aug 2022US 2022/0251993 A1Shanghai Bixiufu Enterprise Management Co., Ltd.
- Exhaust treatment system and method24 Feb 2022US 2022/0054974 A1Shanghai Bixiufu Enterprise Management Co., Ltd.
- Exhaust treatment system and method20 Jan 2022US 2022/0016640 A1Shanghai Bixiufu Enterprise Management Co., Ltd.
Most cited
By later US patents
- System for purifying exhaust gas65US 5,464,458 A1995
- Plasma injector, exhaust gas purifying system and method for injecting reducing agent43US 7,481,043 B2Toyota Jidosha Kabushiki Kaisha · 2009
- Constituents of engine exhaust23US 5,618,500 A1997
- Exhaust gas purification apparatus for motor vehicles14US 4,301,652 A1981
- Method and apparatus for purification of exhaust gases11US 4,315,895 APittsburgh Environmental and Energy Systems, Inc. · 1982