F16L 1/163
By varying the apparent weight of the pipe during the laying operation
Official title: {by varying the apparent weight of the pipe during the laying operation}
F16L1/163 (By varying the apparent weight of the pipe during the laying operation) appears on 67 US grants and 46 published applications in this corpus.
Search patents in F16L- Granted patents
- 67
- Published applications
- 46
- Assignees
- 42
- Inventors
- 105
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 5 | 0 |
| 1978 | 8 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 6 |
| 2007 | 2 | 3 |
| 2008 | 3 | 3 |
| 2009 | 1 | 2 |
| 2010 | 1 | 1 |
| 2011 | 3 | 2 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 3 | 1 |
| 2015 | 1 | 1 |
| 2016 | 0 | 2 |
| 2017 | 3 | 3 |
| 2018 | 1 | 6 |
| 2019 | 6 | 4 |
| 2020 | 3 | 1 |
| 2021 | 2 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Installation of subsea risers26 Aug 2025US 12,398,599 B2Subsea 7 do Brasil Servicos Ltda
- Launching elongate subsea structures30 Jan 2024US 11,884,368 B2Subsea 7 Limited
- Installation of subsea pipelines24 Oct 2023US 11,796,086 B2Subsea 7 (US) LLC
- Subsea buoyancy systems5 Apr 2022US 11,293,566 B2Acergy France SAS
- Controlling the buoyancy of a mass of buoyant spheres2 Mar 2021US 10,935,163 B2Acergy France SAS
- Method for burying a pipe in a seabed and a use thereof29 Aug 2024US 2024/0288095 A1Dyke Engineering Oy
- Installation of Subsea Risers13 Apr 2023US 2023/0112210 A1Subsea 7 do Brasil Servicos Ltda
- Installation of Subsea Risers3 Mar 2022US 2022/0065049 A1
- Installation of Subsea Pipelines11 Nov 2021US 2021/0348698 A1Subsea 7 (US) LLC
- Launching Elongate Subsea Structures22 Jul 2021US 2021/0221475 A1Subsea 7 Limited
Most cited
By later US patents
- Method and apparatus for installing underwater flowlines56US 4,075,862 AFMC Corporation · 1978
- Buoyancy control systems for tubes49US 6,663,453 B2Fiberspar Corporation · 2003
- Flexible/rigid riser system44US 5,615,977 AContinental Emsco Company · 1997
- Buoyancy systems42US 4,121,529 AB & B Insulation, Inc. · 1978
- Single point mooring with strain relief anchoring36US 4,065,822 ATexaco Inc. · 1978