F02F 1/4264
Of exhaust channels
Official title: {of exhaust channels}
F02F1/4264 (Of exhaust channels) appears on 156 US grants and 133 published applications in this corpus.
Search patents in F02F- Granted patents
- 156
- Published applications
- 133
- Assignees
- 81
- Inventors
- 387
- Latest grant
- 18 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 8 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 4 | 2 |
| 2003 | 3 | 4 |
| 2004 | 3 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 5 |
| 2008 | 1 | 6 |
| 2009 | 2 | 5 |
| 2010 | 2 | 8 |
| 2011 | 6 | 4 |
| 2012 | 3 | 9 |
| 2013 | 5 | 9 |
| 2014 | 9 | 6 |
| 2015 | 3 | 10 |
| 2016 | 5 | 6 |
| 2017 | 5 | 14 |
| 2018 | 6 | 11 |
| 2019 | 13 | 9 |
| 2020 | 4 | 6 |
| 2021 | 13 | 6 |
| 2022 | 5 | 8 |
| 2023 | 7 | 2 |
| 2024 | 3 | 2 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Pulse turbo charging exhaust system18 Feb 2025US 12,228,057 B2PACCAR Inc
- Engine system configured for unburned hydrocarbon (HC) collection from exhaust port3 Dec 2024US 12,158,121 B2Caterpillar Inc.
- Exhaust valve, exhaust valve assembly and exhaust valve system for two-stroke internal combustion engines, two-stroke internal combustion engine having same and method for cleaning an exhaust valve25 Jun 2024US 12,018,627 B2BRP US Inc.
- Pulse turbo charging exhaust system19 Mar 2024US 11,933,207 B2PACCAR Inc
- Cylinder head for an internal combustion engine and method for the production thereof5 Dec 2023US 11,835,013 B2Man Truck & Bus AG
- Engine system configured for unburned hydrocarbon (hc) collection from exhaust port29 Feb 2024US 2024/0068425 A1Caterpillar Inc.
- Pulse turbo charging exhaust system22 Feb 2024US 2024/0060443 A1PACCAR Inc
- Pulse turbo charging exhaust system28 Dec 2023US 2023/0417168 A1PACCAR Inc
- Methods of forming a thermally isolated exhaust port19 Jan 2023US 2023/0016389 A1Deere & Company
- Exhaust valve, exhaust valve assembly and exhaust valve system for two-stroke internal combustion engines, two-stroke internal combustion engine having same and method for cleaning an exhaust valve6 Oct 2022US 2022/0316419 A1BRP US Inc.
Most cited
By later US patents
- Adjustable (D)-port insert header for internal combustion engines91US 4,302,935 A1981
- Structure of an exhaust port in an internal combustion engine85US 5,816,210 ANissan Diesel Motor Co., Ltd. · 1998
- Ceramic materials to be insert-cast58US 5,055,435 ANGK Insulators, Ltd. · 1991
- Controlling exhaust gas flow divided between turbocharging and exhaust gas recirculating56US 8,495,992 B2BorgWarner Inc. · 2013
- Exhaust gas cleaning system for a marine propulsion unit46US 5,212,949 ASanshin Kogyo Kabushiki Kaisha · 1993