F02F 1/4285
Of both intake and exhaust channel
Official title: {of both intake and exhaust channel}
F02F1/4285 (Of both intake and exhaust channel) appears on 100 US grants and 97 published applications in this corpus.
Search patents in F02F- Granted patents
- 100
- Published applications
- 97
- Assignees
- 53
- Inventors
- 260
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 3 | 1 |
| 2007 | 2 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 5 |
| 2014 | 1 | 1 |
| 2015 | 2 | 5 |
| 2016 | 3 | 8 |
| 2017 | 5 | 9 |
| 2018 | 7 | 7 |
| 2019 | 11 | 13 |
| 2020 | 12 | 8 |
| 2021 | 9 | 9 |
| 2022 | 6 | 4 |
| 2023 | 5 | 7 |
| 2024 | 5 | 6 |
| 2025 | 4 | 1 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Intake over intake engine21 Jul 2026US 12,687,135 B1
- Engine assembly oil management14 Jul 2026US 12,680,519 B2Arctic Cat Inc.
- Port assembly for 2-stroke diesel engine9 Jun 2026US 12,650,106 B2DeltaHawk Engines, Inc.
- Interchangeable engine assembly10 Feb 2026US 12,546,270 B2Arctic Cat Inc.
- Camshaft carrier for supporting a camshaft, an engine system, and a method of assembly8 Jul 2025US 12,352,187 B2Cummins Inc.
- Interchangeable engine assembly18 Jun 2026US 2026/0168462 A1Arctic Cat Inc.
- Cylinder head4 Jun 2026US 2026/0153061 A1Toyota Jidosha Kabushiki Kaisha
- Port Assembly for 2-Stroke Diesel Engine17 Apr 2025US 2025/0122852 A1DeltaHawk Engines, Inc.
- Airway structure, cylinder cover, and miller-profile engine5 Dec 2024US 2024/0401543 A1Weichai Power Co., Ltd.
- Engine valve configuration28 Nov 2024US 2024/0392703 A1
Most cited
By later US patents
- Two-stroke internal combustion engines41US 4,162,662 A1979
- Internal combustion engine19US 10,161,296 B2Board of Trustees of Michigan State University · 2018
- Valve porting for internal combustion engine having oblong cylinder13US 4,401,067 AHonda Giken Kogyo Kabushiki Kaisha · 1983
- Cylinder head for internal combustion engines, especially diesel engines12US 4,103,663 A1978
- Cylinder head for engine12US 5,560,331 AYamaha Hatsudoki Kabushiki Kaisha · 1996