E02D 23/16
Jointing caissons to the foundation soil, specially to uneven foundation soil
E02D23/16 (Jointing caissons to the foundation soil, specially to uneven foundation soil) appears on 25 US grants and 7 published applications in this corpus.
Search patents in E02D- Granted patents
- 25
- Published applications
- 7
- Assignees
- 17
- Inventors
- 50
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 2 |
| 2021 | 2 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for preventing sudden subsidence of open caisson in soft foundation23 Sep 2025US 12,421,684 B2China Tiesiju Civil Engineering Group Co., Ltd.
- Free-sliding seabed mudmat foundation26 Jul 2022US 11,396,732 B2Dalian University of Technology
- Subsea foundations6 Jul 2021US 11,053,654 B2Subsea 7 Norway AS
- Seabed base structure and method for installation of same16 Feb 2021US 10,919,606 B2Sembcorp Marine Integrated Yard Pte. Ltd.
- Foundation treatment method for piling foundation structure by penetrating hardpan layer22 Sep 2020US 10,781,567 B2Cccc First Harbor Engineering Co., Ltd.
- Method for preventing sudden subsidence of open caisson in soft foundation9 Nov 2023US 2023/0358010 A1China Tiesiju Civil Engineering Group Co., Ltd.
- Free-sliding seabed mudmat foundation9 Sep 2021US 2021/0277619 A1Dalian University of Technology
- Seabed base structure and method for installation of same24 Sep 2020US 2020/0298945 A1Sembcorp Marine Integrated Yard Pte. Ltd.
- Foundation treatment method for piling foundation structure by penetrating hardpan layer6 Feb 2020US 2020/0040542 A1Cccc First Harbor Engineering Co., Ltd.
- Subsea Foundations5 Sep 2019US 2019/0271132 A1Subsea 7 Norway AS
Most cited
By later US patents
- Subsea template and method for using the same60US 4,822,212 AAmoco Corporation · 1989
- Mudmat design37US 4,720,214 AShell Offshore Inc. · 1988
- Suction-type ocean-floor wellhead33US 4,830,541 AShell Offshore Inc. · 1989
- Frozen island and method of making the same15US 4,632,604 ABechtel International Corporation · 1986
- Well base in ocean floor15US 4,721,415 AShell Offshore Inc. · 1988