E02D 23/00
Caissons
Official title: Caissons; Construction or placing of caissons (tunnels submerged into or built in open water E02D29/063 {; moles, piers, quays, breakwaters incorporating caissons E02B3/06; foundation formed by caissons E02D27/18 - E02D27/22; caisson-like artificial islands E02B17/00})
E02D23/00 (Caissons) appears on 141 US grants and 78 published applications in this corpus.
Search patents in E02D- Granted patents
- 141
- Published applications
- 78
- Assignees
- 95
- Inventors
- 252
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 7 | 0 |
| 1987 | 9 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 0 |
| 2004 | 1 | 3 |
| 2005 | 3 | 3 |
| 2006 | 4 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 3 |
| 2011 | 2 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 3 |
| 2014 | 1 | 1 |
| 2015 | 2 | 8 |
| 2016 | 2 | 3 |
| 2017 | 4 | 2 |
| 2018 | 3 | 2 |
| 2019 | 8 | 9 |
| 2020 | 4 | 9 |
| 2021 | 3 | 2 |
| 2022 | 2 | 6 |
| 2023 | 3 | 7 |
| 2024 | 6 | 6 |
| 2025 | 7 | 3 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for constructing concrete block structure6 Oct 2026US 12,753,564 B2Yujoo Co., Ltd.
- Extensible shells and related methods for constructing a ductile support pier23 Jun 2026US 12,662,788 B2Geopier Foundation Company, Inc.
- Suction anchor or well support foundation for use in permeable water bottom formations5 May 2026US 12,618,217 B2NeoDrill AS
- Foundation for an offshore structure and method for installing a foundation16 Dec 2025US 12,497,747 B2Elomatic Oy
- Electrical pole with H-web caisson25 Nov 2025US 12,480,272 B2American Transmission Company LLC
- Concrete Cladding12 Feb 2026US 2026/0043210 A1Silica-X Holdings Inc
- 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
- Modular floating and bottom sitting nearshore infrastructure10 Oct 2024US 2024/0336331 A1Keppel Management Ltd.
Most cited
By later US patents
- Drilling, production and oil storage caisson for deep water100US 4,702,321 A1987
- Subsea template and method for using the same60US 4,822,212 AAmoco Corporation · 1989
- Method and apparatus for installing marine silos47US 4,744,698 A1988
- Mudmat design37US 4,720,214 AShell Offshore Inc. · 1988
- Method of transporting and installing an offshore structure37US 6,612,781 B1Ove Arup Partnership Limited · 2003