F02M 26/15
In relation to engine exhaust purifying apparatus
Official title: in relation to engine exhaust purifying apparatus
F02M26/15 (In relation to engine exhaust purifying apparatus) appears on 639 US grants and 676 published applications in this corpus.
Search patents in F02M- Granted patents
- 639
- Published applications
- 676
- Assignees
- 188
- Inventors
- 1,513
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 7 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 14 | 0 |
| 2000 | 11 | 0 |
| 2001 | 17 | 6 |
| 2002 | 9 | 11 |
| 2003 | 12 | 21 |
| 2004 | 16 | 19 |
| 2005 | 19 | 36 |
| 2006 | 20 | 26 |
| 2007 | 27 | 42 |
| 2008 | 19 | 36 |
| 2009 | 13 | 41 |
| 2010 | 18 | 43 |
| 2011 | 32 | 73 |
| 2012 | 41 | 36 |
| 2013 | 36 | 34 |
| 2014 | 42 | 43 |
| 2015 | 36 | 42 |
| 2016 | 31 | 26 |
| 2017 | 32 | 22 |
| 2018 | 23 | 23 |
| 2019 | 24 | 22 |
| 2020 | 21 | 23 |
| 2021 | 18 | 15 |
| 2022 | 17 | 10 |
| 2023 | 10 | 10 |
| 2024 | 6 | 6 |
| 2025 | 6 | 5 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for reducing emissions21 Apr 2026US 12,607,153 B2General Electric Company
- Engine system3 Mar 2026US 12,565,869 B2Mazda Motor Corporation
- Hybrid vehicle13 Jan 2026US 12,523,191 B2Mitsubishi Jidosha Kogyo Kabushiki Kaisha
- Exhaust gas recirculation and aftertreatment control30 Dec 2025US 12,510,036 B2Perkins Engines Company Limited
- Exhaust gas recirculation system, engine assembly, and vehicle23 Dec 2025US 12,503,990 B2BYD Company Limited
- Engine system27 Aug 2026US 2026/0251110 A1Subaru Corporation
- Engine Assembly20 Aug 2026US 2026/0241341 A1Perkins Engines Company Limited
- Exhaust structure of engine4 Jun 2026US 2026/0153067 A1Mazda Motor Corporation
- Dual scr system and control method thereof2 Apr 2026US 2026/0092548 A1Hd Hyundai Infracore Co., Ltd.
- Engine device5 Feb 2026US 2026/0036107 A1Yanmar Power Technology Co., Ltd.
Most cited
By later US patents
- 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
- Low pressure EGR system for diesel engines149US 6,301,887 B1Engelhard Corporation · 2001
- Low emission, diesel-cycle engine146US 6,301,888 B1The United States of America as represented by the Administrator of the Environmental Protection Agency · 2001
- Dual converter engine exhaust system for reducing hydrocarbon emissions137US 5,125,231 ACorning Incorporated · 1992
- Apparatus and method for internal-combustion engine control121US 5,595,060 AMitsubishi Jidosha Kogyo Kabushiki Kaisha · 1997