B01D 2258/012
Diesel engines and lean burn gasoline engines
B01D2258/012 (Diesel engines and lean burn gasoline engines) appears on 1,300 US grants and 1,726 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,300
- Published applications
- 1,726
- Assignees
- 490
- Inventors
- 3,083
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 5 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 11 | 0 |
| 1999 | 9 | 0 |
| 2000 | 14 | 0 |
| 2001 | 7 | 5 |
| 2002 | 9 | 9 |
| 2003 | 6 | 12 |
| 2004 | 12 | 14 |
| 2005 | 11 | 22 |
| 2006 | 13 | 29 |
| 2007 | 11 | 35 |
| 2008 | 16 | 53 |
| 2009 | 18 | 133 |
| 2010 | 28 | 138 |
| 2011 | 60 | 106 |
| 2012 | 89 | 84 |
| 2013 | 101 | 74 |
| 2014 | 72 | 96 |
| 2015 | 98 | 105 |
| 2016 | 84 | 97 |
| 2017 | 93 | 95 |
| 2018 | 67 | 90 |
| 2019 | 86 | 81 |
| 2020 | 69 | 72 |
| 2021 | 72 | 63 |
| 2022 | 60 | 67 |
| 2023 | 50 | 66 |
| 2024 | 36 | 82 |
| 2025 | 46 | 55 |
| 2026 | 21 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Method and apparatus for reducing nitrogen oxides from internal combustion engine207US 5,272,871 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1993
- 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
- NOx decreasing apparatus for an internal combustion engine153US 5,412,946 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1995
- Low emission, diesel-cycle engine146US 6,301,888 B1The United States of America as represented by the Administrator of the Environmental Protection Agency · 2001
- Catalyzed SCR filter and emission treatment system132US 7,229,597 B2BASFD Catalysts LLC · 2007