F02B 37/02
Gas passages between engine outlet and pump drive
Official title: Gas passages between engine outlet and pump drive, e.g. reservoirs
F02B37/02 (Gas passages between engine outlet and pump drive) appears on 767 US grants and 720 published applications in this corpus.
Search patents in F02B- Granted patents
- 767
- Published applications
- 720
- Assignees
- 229
- Inventors
- 1,457
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 10 | 0 |
| 1986 | 8 | 0 |
| 1987 | 5 | 0 |
| 1988 | 12 | 0 |
| 1989 | 13 | 0 |
| 1990 | 7 | 0 |
| 1991 | 12 | 0 |
| 1992 | 9 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 7 | 0 |
| 1996 | 9 | 0 |
| 1997 | 5 | 0 |
| 1998 | 10 | 0 |
| 1999 | 14 | 0 |
| 2000 | 10 | 0 |
| 2001 | 11 | 0 |
| 2002 | 15 | 6 |
| 2003 | 5 | 16 |
| 2004 | 12 | 14 |
| 2005 | 10 | 23 |
| 2006 | 14 | 18 |
| 2007 | 13 | 29 |
| 2008 | 10 | 21 |
| 2009 | 12 | 21 |
| 2010 | 11 | 39 |
| 2011 | 10 | 33 |
| 2012 | 28 | 32 |
| 2013 | 26 | 27 |
| 2014 | 25 | 47 |
| 2015 | 32 | 36 |
| 2016 | 36 | 50 |
| 2017 | 37 | 37 |
| 2018 | 50 | 42 |
| 2019 | 29 | 51 |
| 2020 | 54 | 63 |
| 2021 | 51 | 32 |
| 2022 | 37 | 29 |
| 2023 | 26 | 17 |
| 2024 | 25 | 12 |
| 2025 | 19 | 10 |
| 2026 | 3 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Internal combustion engine1,364US 4,054,108 AGeneral Motors Corporation · 1977
- Twin turbine exhaust gas re-circulation system having a second stage variable nozzle turbine120US 6,412,279 B1Caterpillar Inc. · 2002
- Internal combustion engine with an exhaust gas recirculation system118US 5,740,786 AMercedes-Benz AG · 1998
- Exhaust gas re-circulation arrangement111US 6,216,459 B1DaimlerChrysler AG · 2001
- Turbocharged internal combustion engine108US 6,378,308 B13K Warner Turbosystems GmbH · 2002