B01D 53/9413
Processes characterised by a specific catalyst
Official title: {Processes characterised by a specific catalyst}
B01D53/9413 (Processes characterised by a specific catalyst) appears on 2,149 US grants and 2,430 published applications in this corpus.
Search patents in B01D- Granted patents
- 2,149
- Published applications
- 2,430
- Assignees
- 568
- Inventors
- 3,900
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 17 | 0 |
| 1978 | 15 | 0 |
| 1979 | 6 | 0 |
| 1980 | 8 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 14 | 0 |
| 1993 | 9 | 0 |
| 1994 | 18 | 0 |
| 1995 | 20 | 0 |
| 1996 | 17 | 0 |
| 1997 | 11 | 0 |
| 1998 | 36 | 0 |
| 1999 | 31 | 0 |
| 2000 | 40 | 0 |
| 2001 | 26 | 18 |
| 2002 | 35 | 34 |
| 2003 | 30 | 41 |
| 2004 | 29 | 34 |
| 2005 | 21 | 23 |
| 2006 | 23 | 40 |
| 2007 | 19 | 42 |
| 2008 | 11 | 37 |
| 2009 | 18 | 83 |
| 2010 | 45 | 112 |
| 2011 | 30 | 103 |
| 2012 | 58 | 109 |
| 2013 | 97 | 102 |
| 2014 | 92 | 118 |
| 2015 | 112 | 146 |
| 2016 | 100 | 132 |
| 2017 | 128 | 189 |
| 2018 | 128 | 240 |
| 2019 | 207 | 176 |
| 2020 | 152 | 148 |
| 2021 | 137 | 125 |
| 2022 | 119 | 112 |
| 2023 | 97 | 95 |
| 2024 | 73 | 86 |
| 2025 | 67 | 48 |
| 2026 | 20 | 37 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Selective catalytic reduction catalyst for the treatment of an exhaust gas8 Sep 2026US 12,728,409 B2BASF Mobile Emissions Catalysts LLC
- Catalyzed soot filter with reduced ammonia oxidation1 Sep 2026US 12,723,531 B2BASF Mobile Emissions Catalysts LLC
- Decomposition chamber with guide swirl mixer11 Aug 2026US 12,704,086 B2Cummins Emission Solutions Inc.
- Apparatus for reducing greenhouse gas emission in vessel and vessel including the same14 Jul 2026US 12,678,736 B2Daewoo Shipbuilding & Marine Engineering Co., Ltd.
- Exhaust gas purification device7 Jul 2026US 12,673,320 B2Cataler Corporation
- Method for producing fe-doped beta zeolite catalyst monoliths8 Oct 2026US 2026/0307064 A1BASF SE
- Catalytic materials comprising fe-containing zeolitic material for the treatment of an exhaust gas1 Oct 2026US 2026/0295569 A1
- Composite of manganese-based oxide and zeolite useful as nh3-scr catalyst24 Sep 2026US 2026/0284594 A1
- Modified copper zeolites and method of using the same for treatment of gas streams containing nox24 Sep 2026US 2026/0284646 A1BASF SE
- Exhaust gas purification catalyst device3 Sep 2026US 2026/0257210 A1Cataler Corporation
Most cited
By later US patents
- Method for reduction of nitrogen oxides with ammonia using promoted zeolite catalysts223US 4,961,917 AEngelhard Corporation · 1990
- Exhaust purification device of internal combustion engine199US 5,473,887 AToyota Jidosha Kabushiki Kaisha · 1995
- Low emission, diesel-cycle engine158US 6,470,682 B2The United States of America as represented by the Administrator of the United States Environmental Protection Agency · 2002
- Staged metal-promoted zeolite catalysts and method for catalytic reduction of nitrogen oxides using the same156US 5,516,497 AEngelhard Corporation · 1996
- NOx decreasing apparatus for an internal combustion engine153US 5,412,946 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1995