E02D 23/08
Lowering or sinking caissons
Official title: Lowering or sinking caissons {(sinking mine shaft E21D1/00)}
E02D23/08 (Lowering or sinking caissons) appears on 60 US grants and 37 published applications in this corpus.
Search patents in E02D- Granted patents
- 60
- Published applications
- 37
- Assignees
- 47
- Inventors
- 115
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 2 | 2 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 2 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 5 |
| 2016 | 1 | 3 |
| 2017 | 2 | 1 |
| 2018 | 2 | 0 |
| 2019 | 3 | 4 |
| 2020 | 1 | 3 |
| 2021 | 1 | 0 |
| 2022 | 0 | 5 |
| 2023 | 3 | 3 |
| 2024 | 3 | 1 |
| 2025 | 4 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Suction anchor or well support foundation for use in permeable water bottom formations5 May 2026US 12,618,217 B2NeoDrill AS
- Subsea wellhead foundation28 Oct 2025US 12,454,803 B2Onesubsea, LLC
- Method for preventing sudden subsidence of open caisson in soft foundation23 Sep 2025US 12,421,684 B2China Tiesiju Civil Engineering Group Co., Ltd.
- Foundation modularization24 Jun 2025US 12,338,595 B2Equinor Energy AS
- Subsea assembly modularization4 Feb 2025US 12,215,472 B2Equinor Energy AS
- Installation and removal of subsea foundations13 Feb 2025US 2025/0052027 A1Subsea 7 Norway AS
- Subsea foundation9 Jan 2025US 2025/0012035 A1Equinor Energy AS
- Subsea foundation2 Jan 2025US 2025/0003172 A1Equinor Energy AS
- Subsea wellhead foundation15 Aug 2024US 2024/0271383 A1Aker Solutions Subsea AS
- Method for preventing sudden subsidence of open caisson in soft foundation9 Nov 2023US 2023/0358010 A1China Tiesiju Civil Engineering Group Co., Ltd.
Most cited
By later US patents
- Systems and methods for driving large diameter caissons30US 6,672,805 B1American Piledriving Equipment, Inc. · 2004
- Subsea foundation element and applications thereof25US 4,733,993 AJ & W Offshore AB · 1988
- Automatically adjustable caisson clamp24US 6,648,556 B1American Piledriving Equipment, Inc. · 2003
- Automatically adjustable caisson clamp24US 6,896,448 B1American Piledriving Equipment, Inc. · 2005
- Systems and methods for driving large diameter caissons22US 6,908,262 B1American Piledriving Equipment, Inc. · 2005