B63B 3/56
Bulkheads
Official title: Bulkheads; Bulkhead reinforcements (arrangements of watertight doors B63B43/24)
B63B3/56 (Bulkheads) appears on 47 US grants and 42 published applications in this corpus.
Search patents in B63B- Granted patents
- 47
- Published applications
- 42
- Assignees
- 37
- Inventors
- 107
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 2 |
| 2013 | 1 | 4 |
| 2014 | 2 | 2 |
| 2015 | 1 | 1 |
| 2016 | 3 | 4 |
| 2017 | 3 | 4 |
| 2018 | 4 | 1 |
| 2019 | 5 | 4 |
| 2020 | 4 | 4 |
| 2021 | 2 | 1 |
| 2022 | 1 | 2 |
| 2023 | 0 | 1 |
| 2024 | 2 | 2 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Tool-less mating bulkhead connector29 Jul 2025US 12,371,132 B1Vatn Systems Inc.
- Container hopper barge with pedestal support system16 Jul 2024US 12,037,089 B2Arcosa Marine Products, Inc.
- Water diverting flat drifting hull for a catamaran25 Jun 2024US 12,017,734 B2
- Modular system for submersible vehicle7 Jun 2022US 11,352,111 B2The Johns Hopkins University
- Methods for constructing hulls for offshore structures24 Aug 2021US 11,097,809 B2Horton Do Brasil Tecnologia Offshore, Ltda.
- Tool-less mating bulkhead connector25 Jun 2026US 2026/0175945 A1Vatn Systems Inc.
- Container hopper barge with pedestal support system17 Oct 2024US 2024/0343357 A1Arcosa Marine Products, Inc.
- Floating production storage and offloading vessel for production of hydrogen and ammonia4 Apr 2024US 2024/0109625 A1
- Intumescent Cover or Joiner8 Jun 2023US 2023/0173314 A1Ashmere Holdings Pty Ltd.
- Water diverting flat drifting hull for a catamaran13 Oct 2022US 2022/0324535 A1
Most cited
By later US patents
- Joiner bulkhead method and apparatus19US 4,038,799 AFrigitemp Corporation · 1977
- Method for reconfiguration tankers19US 5,189,975 AMobil Oil Corporation · 1993
- Double hull ship without reinforcing transverse members between the inner and outer hull platings16US 4,660,491 AHitachi Zosen Corporation · 1987
- Boat with integrated floor and stringer system and associated method of manufacturing13US 6,032,606 A2000
- Boat with integrated floor and stringer system and associated method of manufacturing12US 6,161,496 A2000