B63H 2025/066
Arrangements of two or more rudders
Official title: {Arrangements of two or more rudders; Steering gear therefor}
B63H2025/066 (Arrangements of two or more rudders) appears on 76 US grants and 51 published applications in this corpus.
Search patents in B63H- Granted patents
- 76
- Published applications
- 51
- Assignees
- 39
- Inventors
- 121
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 2 |
| 2003 | 4 | 3 |
| 2004 | 2 | 5 |
| 2005 | 5 | 2 |
| 2006 | 3 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 2 |
| 2014 | 2 | 2 |
| 2015 | 4 | 3 |
| 2016 | 4 | 2 |
| 2017 | 2 | 3 |
| 2018 | 3 | 2 |
| 2019 | 5 | 2 |
| 2020 | 2 | 4 |
| 2021 | 1 | 2 |
| 2022 | 4 | 1 |
| 2023 | 2 | 6 |
| 2024 | 3 | 3 |
| 2025 | 3 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Steering system having steering angle correction function for single-propeller twin-rudder ship22 Sep 2026US 12,741,731 B2Japan Hamworthy & Co., Ltd.
- Steering system with twin actuators and tie bar10 Feb 2026US 12,545,388 B2Dometic Marine Canada Inc.
- Gate rudder including left rudder and right rudder disposed left and right of propeller of ship21 Oct 2025US 12,448,106 B2Kay Seven Co., Ltd.
- Rudder16 Sep 2025US 12,415,593 B2Kay Seven Co., Ltd.
- Traction device for towing an object along a water surface or through a body of water9 Sep 2025US 12,409,920 B2ECO Trawl AS
- Method and apparatus for controlling ship propulsion, and a propulsion system20 Aug 2026US 2026/0242042 A1Wartsila Netherlands B.V.
- Uniaxial twin-rudder ship having automatic docking function15 May 2025US 2025/0153838 A1Japan Hamworthy & Co., Ltd.
- Steering-support system for marine vessels6 Feb 2025US 2025/0042527 A1
- Steering system having steering angle correction function for single-propeller twin-rudder ship11 Apr 2024US 2024/0116619 A1Japan Hamworthy & Co., Ltd.
- Autopilot system for marine vessels21 Mar 2024US 2024/0092472 A1
Most cited
By later US patents
- Personal watercraft and off-power steering system for a personal watercraft58US 6,523,489 B2Bombardier Inc. · 2003
- Steering system for high performance powerboats57US 5,359,956 A1994
- Side plate rudder system55US 6,415,729 B1The United States of America as represented by the Secretary of the Navy · 2002
- Anti-skid device for flat-bottomed boats42US 5,235,926 A1993
- Dual rudder watercraft steering control system for enhanced maneuverability39US 8,943,988 B1Enovation Controls, LLC · 2015