F01N 2590/021
For outboard engines
Official title: for outboard engines
F01N2590/021 (For outboard engines) appears on 221 US grants and 93 published applications in this corpus.
Search patents in F01N- Granted patents
- 221
- Published applications
- 93
- Assignees
- 28
- Inventors
- 262
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 12 | 0 |
| 1997 | 5 | 0 |
| 1998 | 9 | 0 |
| 1999 | 7 | 0 |
| 2000 | 13 | 0 |
| 2001 | 7 | 4 |
| 2002 | 9 | 8 |
| 2003 | 6 | 1 |
| 2004 | 3 | 5 |
| 2005 | 9 | 1 |
| 2006 | 2 | 3 |
| 2007 | 3 | 2 |
| 2008 | 0 | 5 |
| 2009 | 2 | 3 |
| 2010 | 7 | 3 |
| 2011 | 7 | 2 |
| 2012 | 2 | 2 |
| 2013 | 5 | 5 |
| 2014 | 7 | 5 |
| 2015 | 7 | 1 |
| 2016 | 11 | 9 |
| 2017 | 10 | 4 |
| 2018 | 8 | 2 |
| 2019 | 8 | 1 |
| 2020 | 3 | 5 |
| 2021 | 7 | 4 |
| 2022 | 4 | 10 |
| 2023 | 9 | 2 |
| 2024 | 6 | 6 |
| 2025 | 5 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Outboard motor28 Oct 2025US 12,454,340 B2Yamaha Hatsudoki Kabushiki Kaisha
- V-type engine, outboard motor, and ship6 May 2025US 12,291,988 B2Honda Motor Co., Ltd.
- Vessel propulsion apparatus, vessel, vessel engine, and exhaust structure of vessel engine11 Mar 2025US 12,246,809 B2Yamaha Hatsudoki Kabushiki Kaisha
- V-type engine, outboard motor, and ship18 Feb 2025US 12,228,058 B2Honda Motor Co., Ltd.
- Outboard engine assembly11 Feb 2025US 12,221,921 B1BRP US Inc.
- Outboard engine assembly having an idle relief system31 Oct 2024US 2024/0359784 A1BRP US Inc.
- Improvements in or relating to an outboard propulsion system19 Sep 2024US 2024/0308635 A1Caudwell Marine Limited
- V engine, outboard unit, and ship5 Sep 2024US 2024/0295186 A1Honda Motor Co., Ltd.
- V-type engine, outboard motor, and watercraft13 Jun 2024US 2024/0191648 A1Honda Motor Co., Ltd.
- V-type engine, outboard motor, and ship6 Jun 2024US 2024/0183295 A1Honda Motor Co., Ltd.
Most cited
By later US patents
- Exhaust gas purifying device for marine engine57US 4,848,082 ASanshin Kogyo Kabushiki Kaisha · 1989
- Sound insulation for outboard motors52US 6,875,066 B2Polymer Technologies Limited · 2005
- Engine and outboard engine structure45US 5,553,586 AHonda Giken Kogyo Kabushiki Kaisha · 1996
- Idle relief mufflers and outboard motors having idle relief mufflers42US 9,376,194 B1Brunswick Corporation · 2016
- Outboard motors having steerable lower gearcase41US 10,800,502 B1Brunswick Corporation · 2020