F02M 35/10222
Exhaust gas recirculation [egr]
Official title: {Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission}
F02M35/10222 (Exhaust gas recirculation [egr]) appears on 1,028 US grants and 929 published applications in this corpus.
Search patents in F02M- Granted patents
- 1,028
- Published applications
- 929
- Assignees
- 300
- Inventors
- 2,038
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 6 | 0 |
| 1996 | 15 | 0 |
| 1997 | 12 | 0 |
| 1998 | 12 | 0 |
| 1999 | 18 | 0 |
| 2000 | 25 | 0 |
| 2001 | 24 | 10 |
| 2002 | 27 | 20 |
| 2003 | 17 | 24 |
| 2004 | 26 | 37 |
| 2005 | 30 | 34 |
| 2006 | 27 | 22 |
| 2007 | 28 | 23 |
| 2008 | 13 | 21 |
| 2009 | 14 | 28 |
| 2010 | 13 | 38 |
| 2011 | 20 | 28 |
| 2012 | 22 | 34 |
| 2013 | 27 | 20 |
| 2014 | 17 | 25 |
| 2015 | 31 | 48 |
| 2016 | 33 | 68 |
| 2017 | 62 | 69 |
| 2018 | 63 | 55 |
| 2019 | 63 | 72 |
| 2020 | 68 | 87 |
| 2021 | 91 | 67 |
| 2022 | 76 | 43 |
| 2023 | 50 | 23 |
| 2024 | 18 | 15 |
| 2025 | 11 | 11 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Evaporative fuel vapor emission control systems17 Mar 2026US 12,577,895 B2Ingevity South Carolina, LLC
- Exhaust apparatus for agricultural work vehicle and agricultural work vehicle3 Mar 2026US 12,565,848 B2Ls Mtron Ltd.
- High pressure gas compresor environmental recovery system8 Oct 2026US 2026/0309137 A1Flowco MasterCo LLC
- System and control method13 Aug 2026US 2026/0235056 A1Komatsu Ltd.
- Hydrogen powertrain23 Jul 2026US 2026/0208573 A1Ampere S.A.S.
- Internal combustion engine11 Jun 2026US 2026/0160225 A1Toyota Jidosha Kabushiki Kaisha
- All-Terrain Vehicle7 May 2026US 2026/0125132 A1Zhejiang CFMOTO Power Co., Ltd.
Most cited
By later US patents
- 6-cycle engine with regenerator168US 8,186,334 B22012
- Intake manifold plate adapter77US 7,533,661 B2Holley Performance Products, Inc. · 2009
- Integrated induction system61US 5,003,933 AGeneral Motors Corporation · 1991
- Venturi mixing system for exhaust gas recirculation (EGR)53US 7,032,578 B2International Engine Intellectual Property Company, LLC · 2006
- Evaporative fuel vapor emission control systems52US 9,732,649 B2Ingevity South Carolina, LLC · 2017