B63H 25/36
Rudder-position indicators
B63H25/36 (Rudder-position indicators) appears on 35 US grants and 26 published applications in this corpus.
Search patents in B63H- Granted patents
- 35
- Published applications
- 26
- Assignees
- 22
- Inventors
- 59
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 1 |
| 2007 | 2 | 2 |
| 2008 | 2 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 3 |
| 2011 | 1 | 2 |
| 2012 | 3 | 1 |
| 2013 | 2 | 0 |
| 2014 | 1 | 2 |
| 2015 | 1 | 1 |
| 2016 | 3 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 3 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 3 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Attitude detection device23 Dec 2025US 12,503,215 B2Honda Motor Co., Ltd.
- Dynamic marine display systems and methods19 Aug 2025US 12,393,386 B2Raymarine UK Limited
- Vessel azimuth control apparatus and azimuth control method4 Feb 2025US 12,214,854 B2Mitsubishi Electric Corporation
- Automatic steering device, automatic steering method and automatic steering program12 Jul 2022US 11,383,813 B2Furuno Electric Co., Ltd.
- Redundant steering system for waterborne vessels1 Dec 2020US 10,850,824 B2
- Reverse gate assembly and method for steering a watercraft30 Jul 2026US 2026/0217350 A1BRP Megatech Industries Inc.
- Steering system having steering angle correction function for single-propeller twin-rudder ship11 Apr 2024US 2024/0116619 A1Japan Hamworthy & Co., Ltd.
- Attitude detection device22 Dec 2022US 2022/0402589 A1Honda Motor Co., Ltd.
- Dynamic marine display systems and methods24 Nov 2022US 2022/0374186 A1FLIR Belgium BVBA
- Vessel azimuth control apparatus and azimuth control method6 Oct 2022US 2022/0315193 A1Mitsubishi Electric Corporation
Most cited
By later US patents
- Dual rudder watercraft steering control system for enhanced maneuverability39US 8,943,988 B1Enovation Controls, LLC · 2015
- Steer by wire helm23US 7,137,347 B2Teleflex Canada Incorporated · 2006
- Trolling motor direction indicator assembly system17US 5,582,526 ABrunswick Corporation · 1996
- Arrangement for monitoring a rudder control system14US 4,374,423 AAnschutz & Co. GmbH · 1983
- Rudder control system with adjustable solenoid on/off settings, solenoid burnout protection, and hydraulic system monitoring11US 7,469,168 B1Northrop Grumman Corporation · 2008