B63H 20/26
Exhaust gas outlets passing through the propeller or its hub
Official title: {Exhaust gas outlets} passing through the propeller or its hub
B63H20/26 (Exhaust gas outlets passing through the propeller or its hub) appears on 74 US grants and 29 published applications in this corpus.
Search patents in B63H- Granted patents
- 74
- Published applications
- 29
- Assignees
- 19
- Inventors
- 115
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 4 |
| 2003 | 2 | 0 |
| 2004 | 1 | 2 |
| 2005 | 3 | 2 |
| 2006 | 1 | 1 |
| 2007 | 2 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 2 | 1 |
| 2013 | 2 | 3 |
| 2014 | 3 | 1 |
| 2015 | 4 | 2 |
| 2016 | 2 | 1 |
| 2017 | 1 | 2 |
| 2018 | 3 | 0 |
| 2019 | 4 | 0 |
| 2020 | 1 | 1 |
| 2021 | 2 | 0 |
| 2022 | 2 | 2 |
| 2023 | 4 | 3 |
| 2024 | 3 | 2 |
| 2025 | 3 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- End cap for guiding an exhaust gas flow of a boat engine, propeller system for a boat engine, boat engine, and use of an end cap and method for guiding an exhaust gas flow of a boat engine2 Dec 2025US 12,486,013 B2Neuro-Net GmbH
- Outboard motor28 Oct 2025US 12,454,340 B2Yamaha Hatsudoki Kabushiki Kaisha
- Marine drives and methods of making marine drives so as to minimize deleterious effects of cavitation19 Aug 2025US 12,391,353 B1Brunswick Corporation
- Marine drives and methods of making marine drives so as to minimize deleterious effects of cavitation14 May 2024US 11,981,411 B1Brunswick Corporation
- Propulsion unit for a marine vessel9 Apr 2024US 11,952,092 B2AB Volvo Penta
- Improvements in or relating to an outboard propulsion system19 Sep 2024US 2024/0308635 A1Caudwell Marine Limited
- Ship propulsion device28 Mar 2024US 2024/0101240 A1Panasonic Intellectual Property Management Co., Ltd.
- Outboard motor and boat28 Dec 2023US 2023/0415876 A1Yamaha Hatsudoki Kabushiki Kaisha
- End cap for guiding an exhaust gas flow of a boat engine, propeller system for a boat engine, boat engine, and use of an end cap and method for guiding an exhaust gas flow of a boat engine19 Oct 2023US 2023/0331363 A1Neuro-Net GmbH
- Outboard motor2 Feb 2023US 2023/0035557 A1Yamaha Hatsudoki Kabushiki Kaisha
Most cited
By later US patents
- Propeller hub assembly having overlap zone with optional removable exhaust ring and sized ventilation plugs140US 7,056,091 B22006
- Exhaust coupling assembly for a marine stern drive47US 4,178,873 ABrunswick Corporation · 1979
- Boat drive43US 4,600,395 AAB Volvo Penta · 1986
- High speed outboard drive unit39US 4,295,835 ABrunswick Corporation · 1981
- Exhaust system for a marine propulsion device having a driveshaft extending vertically through a bottom portion of a boat hull38US 7,387,556 B1Brunswick Corporation · 2008