F02F 1/4271
With an exhaust liner
Official title: {with an exhaust liner}
F02F1/4271 (With an exhaust liner) appears on 30 US grants and 10 published applications in this corpus.
Search patents in F02F- Granted patents
- 30
- Published applications
- 10
- Assignees
- 21
- Inventors
- 66
- Latest grant
- 5 Dec 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 2 | 2 |
| 2022 | 2 | 1 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Cylinder head for an internal combustion engine and method for the production thereof5 Dec 2023US 11,835,013 B2Man Truck & Bus AG
- Exhaust structure of internal combustion engine1 Nov 2022US 11,486,293 B2Honda Motor Co., Ltd.
- Insulated exhaust port liner for a cylinder head assembly of a motor vehicle3 May 2022US 11,319,894 B2GM Global Technology Operations LLC
- Cylinder head with connected exhaust manifold of an internal combustion engine31 Aug 2021US 11,105,295 B2Man Truck & Bus AG
- Thermally enhanced exhaust port liner27 Apr 2021US 10,989,137 B2Cartridge Limited
- Exhaust structure of internal combustion engine3 Mar 2022US 2022/0065155 A1Honda Motor Co., Ltd.
- Insulated exhaust port liner for a cylinder head assembly of a motor vehicle2 Dec 2021US 2021/0372345 A1GM Global Technology Operations LLC
- Cylinder head for an internal combustion engine and method for the production thereof11 Nov 2021US 2021/0348580 A1Man Truck & Bus AG
- Thermally enhanced exhaust port liner30 Apr 2020US 2020/0132014 A1Cartridge Limited
- Insulating sleeve having an insulating-gap for a cast cylinder head12 Dec 2019US 2019/0376465 A1GM Global Technology Operations LLC
Most cited
By later US patents
- Ceramic materials to be insert-cast58US 5,055,435 ANGK Insulators, Ltd. · 1991
- Exhaust gas cleaning system for a marine propulsion unit46US 5,212,949 ASanshin Kogyo Kabushiki Kaisha · 1993
- Port liner and method of assembly15US 4,430,856 ADeere & Company · 1984
- Exhaust port liner for multi-cylinder internal combustion engine13US 4,123,902 ANissan Motor Co., Ltd. · 1978
- Thermal reactor system for internal combustion engine12US 4,086,763 AFuji Jukogyo Kabushiki Kaisha · 1978