F02F 1/4235
Of intake channels
Official title: {of intake channels}
F02F1/4235 (Of intake channels) appears on 216 US grants and 182 published applications in this corpus.
Search patents in F02F- Granted patents
- 216
- Published applications
- 182
- Assignees
- 103
- Inventors
- 516
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 6 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 7 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 3 |
| 2002 | 2 | 5 |
| 2003 | 6 | 6 |
| 2004 | 3 | 13 |
| 2005 | 11 | 8 |
| 2006 | 11 | 5 |
| 2007 | 4 | 1 |
| 2008 | 2 | 2 |
| 2009 | 0 | 8 |
| 2010 | 4 | 4 |
| 2011 | 4 | 2 |
| 2012 | 1 | 7 |
| 2013 | 4 | 6 |
| 2014 | 5 | 5 |
| 2015 | 8 | 10 |
| 2016 | 1 | 11 |
| 2017 | 10 | 14 |
| 2018 | 13 | 11 |
| 2019 | 8 | 15 |
| 2020 | 10 | 12 |
| 2021 | 15 | 10 |
| 2022 | 8 | 8 |
| 2023 | 9 | 3 |
| 2024 | 4 | 7 |
| 2025 | 4 | 2 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Engine cylinder head with temperature-reducing pressure sensor bore3 Mar 2026US 12,565,853 B2Caterpillar Inc.
- Air-cooled, four-stroke aviation engine30 Sep 2025US 12,429,010 B2Textron Innovations Inc.
- Air intake port for a lean-burn gasoline engine4 Mar 2025US 12,241,436 B2Jaguar Land Rover Limited
- Cylinder head for a lean-burn gasoline engine18 Feb 2025US 12,228,092 B2Jaguar Land Rover Limited
- Airway structure, cylinder cover, and miller-profile engine18 Feb 2025US 12,228,093 B2Weichai Power Co., Ltd.
- Passive prechamber fueling device and method23 Jul 2026US 2026/0210285 A1Aramco Services Company
- Swirl generating intake ports for internal combustion engines16 Apr 2026US 2026/0104004 A1Cummins Inc.
- Internal combustion engine having a top-down cooling concept12 Mar 2026US 2026/0071587 A1AVL List GmbH
- Air-cooled, four-stroke aviation engine22 Jan 2026US 2026/0022676 A1Textron Innovations Inc.
- Engine cylinder head with temperature-reducing pressure sensor bore25 Dec 2025US 2025/0389222 A1Caterpillar Inc.
Most cited
By later US patents
- Internal combustion engine with variable camshaft timing and intake valve masking55US 5,950,582 AFord Global Technologies, LLC · 1999
- Intake system for internal combustion engines45US 4,174,686 AToyo Kogyo Co., Ltd. · 1979
- Intake device for an internal combustion engine43US 4,890,586 AHonda Giken Kogyo Kabushiki Kaisha · 1990
- Engine cylinder inlet port42US 4,159,011 AGeneral Motors Corporation · 1979
- Engine intake system31US 4,543,931 AMazda Motor Corporation · 1985