B63B 17/0018
Arrangements or devices specially adapted for facilitating access to underwater elements
Official title: {Arrangements or devices specially adapted for facilitating access to underwater elements, e.g. to propellers (retractable propellers B63H5/125; tilting outboard propulsion units B63H20/08); Externally attached cofferdams or the like (caissons adapted to laying foundations E02D23/00 - E02D27/00)}
B63B17/0018 (Arrangements or devices specially adapted for facilitating access to underwater elements) appears on 58 US grants and 28 published applications in this corpus.
Search patents in B63B- Granted patents
- 58
- Published applications
- 28
- Assignees
- 33
- Inventors
- 97
- Latest grant
- 22 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 2 | 2 |
| 2011 | 1 | 1 |
| 2012 | 2 | 1 |
| 2013 | 1 | 2 |
| 2014 | 1 | 0 |
| 2015 | 2 | 5 |
| 2016 | 1 | 3 |
| 2017 | 4 | 0 |
| 2018 | 2 | 3 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Counter rotating propeller pod mechanical arrangement22 Jul 2025US 12,365,438 B2GE Energy Power Conversion France
- Cycloidal marine propulsion unit and a marine vessel equipped therewith4 Jun 2024US 11,999,459 B2ABB AB
- Water spray system for a boat25 Feb 2020US 10,571,215 B2
- Guiding arrangement for retractable thruster9 Jul 2019US 10,343,755 B2Caterpillar Propulsion Production AB
- Method of handling a unit in a marine vessel and an assembly in a marine vessel13 Nov 2018US 10,124,860 B2Wartsila Netherlands B.V.
- Sea chest maintenance access trunk29 May 2025US 2025/0171119 A1
- Inspection and/or maintenance method and associated apparatus13 Feb 2025US 2025/0050984 A1
- Marine vessel maintenance apparatus and method20 Jun 2024US 2024/0199180 A1
- Counter rotating propeller pod mechanical arrangement27 Jul 2023US 2023/0234691 A1GE Energy Power Conversion France
- Underwater port-hole whose surface oriented toward the inside of its mounting structure is faceted24 Nov 2022US 2022/0371690 A1
Most cited
By later US patents
- Vessel having demountable submerged propeller unit23US 4,634,389 AVickers Public Limited Company · 1987
- Marine sensor mounting mechanism19US 5,186,050 AAirmar Technology Corporation · 1993
- High retraction marine thruster19US 6,439,936 B1Global Marine, Inc. · 2002
- Systems and processes for covering openings of marine vessel hulls17US 7,451,717 B1ConocoPhillips Company · 2008
- Water jet propulsion boat16US 5,151,057 AYamaha Hatsudoki Kabushiki Kaisha · 1992