B63B 35/03
Pipe-laying vessels
Official title: Pipe-laying vessels (laying pipes under water F16L1/12)
B63B35/03 (Pipe-laying vessels) appears on 220 US grants and 204 published applications in this corpus.
Search patents in B63B- Granted patents
- 220
- Published applications
- 204
- Assignees
- 99
- Inventors
- 364
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 7 | 2 |
| 2002 | 7 | 1 |
| 2003 | 2 | 7 |
| 2004 | 8 | 1 |
| 2005 | 2 | 5 |
| 2006 | 2 | 3 |
| 2007 | 3 | 4 |
| 2008 | 0 | 2 |
| 2009 | 3 | 7 |
| 2010 | 3 | 15 |
| 2011 | 5 | 17 |
| 2012 | 5 | 9 |
| 2013 | 8 | 16 |
| 2014 | 10 | 11 |
| 2015 | 17 | 19 |
| 2016 | 12 | 13 |
| 2017 | 18 | 16 |
| 2018 | 13 | 14 |
| 2019 | 15 | 8 |
| 2020 | 14 | 9 |
| 2021 | 7 | 8 |
| 2022 | 3 | 7 |
| 2023 | 8 | 3 |
| 2024 | 3 | 3 |
| 2025 | 3 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Manipulator device to apply modules around a pipeline, laying vessel comprising said device and method to operate said laying vessel3 Mar 2026US 12,565,945 B2Saipem S.P.A.
- Hanging-off elongate elements during offshore operations20 Jan 2026US 12,529,271 B2Subsea 7 do Brasil Servicos Ltda
- System for temporarily holding, during piling operations, a foundation pile intended to receive the mast of an off-shore wind turbine9 Dec 2025US 12,492,526 B2Reel
- Top-lock pull-out type connecting device and immersed tube construction ship21 Oct 2025US 12,448,089 B2Cccc First Harbor Engineering Co., Ltd.
- Drag-reducing separator plate and design method therefor19 Aug 2025US 12,391,343 B2China Merchants Deepsea Research Institute (Sanya) Co.
- Hanging-off elongate elements during offshore operations30 Apr 2026US 2026/0117607 A1Subsea 7 do Brasil Servicos Ltda
- Improving fatigue resistance of steel catenary risers27 Nov 2025US 2025/0361776 A1Subsea 7 do Brasil Servicos Ltda
- Hanging-off elongate elements during offshore operations13 Feb 2025US 2025/0052119 A1Subsea 7 do Brasil Servicos Ltda
- Elongated Body Tensioner for Pulling At Least Two Elongated Bodies Along in a Direction of Movement2 Jan 2025US 2025/0003526 A1DEME Offshore NL B.V.
- Top-lock pull-out type connecting device and immersed tube construction ship13 Jun 2024US 2024/0190541 A1Cccc First Harbor Engineering Co., Ltd.
Most cited
By later US patents
- Submarine pipeline laying vessel49US 3,982,402 ASanta Fe International Corporation · 1976
- Semi-submersible pipelaying craft equipped for laying pipes on sea beds, including deep beds, and the method of operation48US 4,257,718 ASaipem S.P.A. · 1981
- Pipelay stinger44US 5,533,834 AStena Offshore Limited · 1996
- Marine pipelay system41US 6,352,388 B1Coflexip Stena Offshore Limited · 2002
- Portable reel pipelaying method39US 4,260,287 ASanta Fe International Corporation · 1981