B01D 53/944
Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
Official title: {Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts (three-way-catalysts [TWC] B01D53/9445)}
B01D53/944 (Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts) appears on 1,289 US grants and 1,492 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,289
- Published applications
- 1,492
- Assignees
- 469
- Inventors
- 2,858
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 11 | 0 |
| 1978 | 9 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 7 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 7 | 0 |
| 1991 | 5 | 0 |
| 1992 | 13 | 0 |
| 1993 | 6 | 0 |
| 1994 | 9 | 0 |
| 1995 | 9 | 0 |
| 1996 | 9 | 0 |
| 1997 | 13 | 0 |
| 1998 | 13 | 0 |
| 1999 | 17 | 0 |
| 2000 | 14 | 0 |
| 2001 | 18 | 10 |
| 2002 | 14 | 17 |
| 2003 | 14 | 23 |
| 2004 | 13 | 37 |
| 2005 | 13 | 24 |
| 2006 | 11 | 40 |
| 2007 | 14 | 58 |
| 2008 | 17 | 44 |
| 2009 | 26 | 85 |
| 2010 | 43 | 90 |
| 2011 | 46 | 68 |
| 2012 | 56 | 66 |
| 2013 | 65 | 63 |
| 2014 | 63 | 83 |
| 2015 | 70 | 89 |
| 2016 | 69 | 77 |
| 2017 | 66 | 90 |
| 2018 | 62 | 109 |
| 2019 | 93 | 81 |
| 2020 | 71 | 68 |
| 2021 | 58 | 59 |
| 2022 | 56 | 77 |
| 2023 | 50 | 51 |
| 2024 | 37 | 41 |
| 2025 | 34 | 18 |
| 2026 | 15 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Catalytic material for treating an exhaust gas produced by a natural gas engine1 Sep 2026US 12,722,145 B2Johnson Matthey Public Limited Company
- Catalyzed soot filter with reduced ammonia oxidation1 Sep 2026US 12,723,531 B2BASF Mobile Emissions Catalysts LLC
- Composite, zoned oxidation catalyst for a compression ignition internal combustion engine25 Aug 2026US 12,714,990 B2Johnson Matthey Public Limited Company
- Emission treatment catalysts, systems and methods26 May 2026US 12,636,613 B2BASF Mobile Emissions Catalysts LLC
- Control of power producing engine in a biomass conversion system21 Apr 2026US 12,606,756 B2Massachusetts Institute of Technology
- Exhaust purification device8 Oct 2026US 2026/0307009 A1Mazda Motor Corporation
- Exhaust aftertreatment system24 Sep 2026US 2026/0286878 A1Donaldson Company, Inc.
- Systems and methods for diesel oxidation catalyst aging prognostics and diagnosis27 Aug 2026US 2026/0249244 A1Cummins Inc.
- Catalyst noble metal particles27 Aug 2026US 2026/0249275 A1Cataler Corporation
- Engine Assembly20 Aug 2026US 2026/0241341 A1Perkins Engines Company Limited
Most cited
By later US patents
- Catalyzed SCR filter and emission treatment system132US 7,229,597 B2BASFD Catalysts LLC · 2007
- Catalyzed diesel exhaust particulate filter112US 5,100,632 AEngelhard Corporation · 1992
- Catalyst for purification of exhaust gases of diesel engines and method of use112US 5,157,007 ADegussa AG · 1992
- Catalytic wall-flow filter103US 6,753,294 B1Johnson Matthey Public Limited Company · 2004
- Oxidation catalyst with bulk ceria, a second bulk metal oxide, and platinum100US 5,491,120 AEngelhard Corporation · 1996