F01N 13/12
Exhaust or silencing apparatus characterised by constructional features: specially adapted for submerged
Official title: specially adapted for submerged exhausting
F01N13/12 (Exhaust or silencing apparatus characterised by constructional features: specially adapted for submerged) appears on 381 US grants and 96 published applications in this corpus.
Search patents in F01N- Granted patents
- 381
- Published applications
- 96
- Assignees
- 60
- Inventors
- 423
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 7 | 0 |
| 1987 | 5 | 0 |
| 1988 | 10 | 0 |
| 1989 | 10 | 0 |
| 1990 | 15 | 0 |
| 1991 | 10 | 0 |
| 1992 | 14 | 0 |
| 1993 | 5 | 0 |
| 1994 | 16 | 0 |
| 1995 | 10 | 0 |
| 1996 | 20 | 0 |
| 1997 | 17 | 0 |
| 1998 | 20 | 0 |
| 1999 | 30 | 0 |
| 2000 | 26 | 0 |
| 2001 | 11 | 6 |
| 2002 | 12 | 11 |
| 2003 | 13 | 9 |
| 2004 | 7 | 6 |
| 2005 | 7 | 5 |
| 2006 | 3 | 5 |
| 2007 | 6 | 4 |
| 2008 | 3 | 7 |
| 2009 | 5 | 2 |
| 2010 | 3 | 4 |
| 2011 | 7 | 1 |
| 2012 | 3 | 5 |
| 2013 | 3 | 5 |
| 2014 | 11 | 2 |
| 2015 | 7 | 1 |
| 2016 | 2 | 3 |
| 2017 | 3 | 3 |
| 2018 | 3 | 2 |
| 2019 | 6 | 1 |
| 2020 | 4 | 4 |
| 2021 | 8 | 2 |
| 2022 | 2 | 5 |
| 2023 | 5 | 1 |
| 2024 | 5 | 0 |
| 2025 | 2 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Outboard motor28 Oct 2025US 12,454,340 B2Yamaha Hatsudoki Kabushiki Kaisha
- Outboard engine assembly11 Feb 2025US 12,221,921 B1BRP US Inc.
- Outboard machine17 Sep 2024US 12,091,145 B2Honda Motor Co., Ltd.
- Method for unblocking pores in a selective catalytic reduction catalyst20 Aug 2024US 12,064,756 B2Volvo Truck Corporation
- Propulsion unit for a marine vessel9 Apr 2024US 11,952,092 B2AB Volvo Penta
- Switchable exhaust system13 Aug 2026US 2026/0235066 A1Keijtech
- Exhaust Closure Device16 Jul 2026US 2026/0201825 A1
- Outboard motor2 Feb 2023US 2023/0035557 A1Yamaha Hatsudoki Kabushiki Kaisha
- Method for unblocking pores in a selective catalytic reduction catalyst22 Dec 2022US 2022/0401944 A1Volvo Truck Corporation
- Propulsion unit for a marine vessel18 Aug 2022US 2022/0258844 A1AB Volvo Penta
Most cited
By later US patents
- Marine wet exhaust system and improvements in powered marine vessel54US 4,019,456 AWhittaker Corporation · 1977
- Exhaust coupling assembly for a marine stern drive47US 4,178,873 ABrunswick Corporation · 1979
- Cooling device for boat engine47US 4,991,546 ASanshin Kogyo Kabushiki Kaisha · 1991
- Exhaust system for small vessel47US 4,997,399 ASanshin Kogyo Kabushiki Kaisha · 1991
- Marine propulsion device with improved catalyst support arrangement46US 5,408,827 AOutboard Marine Corporation · 1995