B63B 29/20
Arrangements or adaptations of ladders
Official title: Arrangements or adaptations of ladders (mounting ladders for berths B63B29/10)
B63B29/20 (Arrangements or adaptations of ladders) appears on 25 US grants and 13 published applications in this corpus.
Search patents in B63B- Granted patents
- 25
- Published applications
- 13
- Assignees
- 15
- Inventors
- 36
- Latest grant
- 27 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 2 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 2 | 1 |
| 2017 | 0 | 1 |
| 2018 | 2 | 2 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 0 | 1 |
| 2022 | 2 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Dive doors for marine vessels having ladder storage27 May 2025US 12,312,048 B1Brunswick Corporation
- Entertainment barge18 Apr 2023US 11,628,913 B2
- Stair assembly, an object and a stair assembly operating method25 Oct 2022US 11,479,975 B2Aiber Exploitatie Management B.V.
- Adjustable step17 May 2022US 11,332,901 B1
- Underdeck mid-cabin entry system for mono hull boat26 Jun 2018US 10,005,524 B1Cigarette Racing Team, LLC.
- A stair assembly, an object and a stair assembly operating method14 Jan 2021US 2021/0010271 A1Aiber Exploitatie Management B.V.
- Entertainment Barge31 Dec 2020US 2020/0407029 A1
- Walk-on aft deck and extendable swim platform system and method10 Dec 2020US 2020/0385089 A1
- Stern platform assembly for an outboard propelled boat22 Nov 2018US 2018/0334224 A1OPACMARE S.r.l.
- Deployable marine system1 Nov 2018US 2018/0312227 A1Auto Anchoring Ladder, LLC
Most cited
By later US patents
- Detachable nestable mast steps54US 4,382,416 A1983
- Diver's boarding ladder24US 5,537,949 AOutboard Marine Corporation · 1996
- Ship ladder16US 4,199,040 ALaitram, L. L. C. · 1980
- Protective platform for a boat16US 7,237,503 B2Stagecoach Adventures, Inc. · 2007
- Removable step climbing assembly13US 3,930,562 A1976