B63H 5/16
Characterised by being mounted in recesses
Official title: characterised by being mounted in recesses; with stationary water-guiding elements; Means to prevent fouling of the propeller, e.g. guards, cages or screens
B63H5/16 (Characterised by being mounted in recesses) appears on 360 US grants and 198 published applications in this corpus.
Search patents in B63H- Granted patents
- 360
- Published applications
- 198
- Assignees
- 124
- Inventors
- 508
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 7 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 8 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 16 | 0 |
| 1991 | 8 | 0 |
| 1992 | 3 | 0 |
| 1993 | 8 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 10 | 0 |
| 1998 | 7 | 0 |
| 1999 | 11 | 0 |
| 2000 | 11 | 0 |
| 2001 | 9 | 2 |
| 2002 | 10 | 4 |
| 2003 | 9 | 5 |
| 2004 | 10 | 8 |
| 2005 | 9 | 11 |
| 2006 | 10 | 9 |
| 2007 | 13 | 11 |
| 2008 | 8 | 11 |
| 2009 | 7 | 7 |
| 2010 | 7 | 7 |
| 2011 | 10 | 6 |
| 2012 | 4 | 5 |
| 2013 | 8 | 8 |
| 2014 | 11 | 9 |
| 2015 | 8 | 12 |
| 2016 | 10 | 8 |
| 2017 | 7 | 8 |
| 2018 | 7 | 3 |
| 2019 | 9 | 7 |
| 2020 | 6 | 8 |
| 2021 | 4 | 6 |
| 2022 | 6 | 7 |
| 2023 | 5 | 8 |
| 2024 | 7 | 12 |
| 2025 | 5 | 11 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Water vehicle1 Sep 2026US 12,722,748 B2Cpd, LLC
- Energy-saving arrangement for twin-screw ships25 Aug 2026US 12,715,564 B2Becker Marine Systems GmbH & Co.KG
- Watercraft propulsion system, and watercraft including the watercraft propulsion system9 Jun 2026US 12,650,690 B2Yamaha Hatsudoki Kabushiki Kaisha
- Weed deflection device2 Jun 2026US 12,643,646 B2
- Watercraft propulsion system, and watercraft including the watercraft propulsion system11 Nov 2025US 12,466,530 B2Yamaha Hatsudoki Kabushiki Kaisha
- Weed deflection device24 Sep 2026US 2026/0285460 A1
- An electric saildrive25 Jun 2026US 2026/0175954 A1Searine A/S
- Tunnel thruster2 Apr 2026US 2026/0091863 A1Lewmar Limited
- Bionic animal12 Mar 2026US 2026/0070632 A1Pioneer Material Precision Tech Co., Ltd.
- Integrated thruster apparatus for a marine vessel15 Jan 2026US 2026/0015073 A1
Most cited
By later US patents
- Marine drive with integrated trim tab100US 7,188,581 B1Brunswick Corporation · 2007
- Electronic propeller guard76US 6,676,460 B1Maruta Electric Boatworks LLC · 2004
- Propelling and driving system for boats72US 6,592,412 B1Siemens Aktiengesellschaft · 2003
- Motorboat propeller guard for improved performance49US 4,680,017 A1987
- Surface effect boat with jet propulsion engines house in keel formed cavities38US 6,220,193 B12001