E02D 5/28
Made of steel or other metals
Official title: made of steel {or other metals (E02D5/52 takes precedence)}
E02D5/28 (Made of steel or other metals) appears on 165 US grants and 186 published applications in this corpus.
Search patents in E02D- Granted patents
- 165
- Published applications
- 186
- Assignees
- 111
- Inventors
- 329
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 3 |
| 2003 | 5 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 2 | 3 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 6 |
| 2013 | 3 | 7 |
| 2014 | 0 | 6 |
| 2015 | 8 | 11 |
| 2016 | 4 | 8 |
| 2017 | 10 | 20 |
| 2018 | 13 | 16 |
| 2019 | 16 | 9 |
| 2020 | 12 | 8 |
| 2021 | 8 | 16 |
| 2022 | 8 | 19 |
| 2023 | 18 | 11 |
| 2024 | 9 | 10 |
| 2025 | 12 | 19 |
| 2026 | 7 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multi-piece underground base for a static structure11 Aug 2026US 12,703,952 B2Fastepc, Inc.
- Systems, methods, and machines for constructing solar foundations23 Jun 2026US 12,662,789 B2Ojjo, Inc.
- Foundation support system shafts, assemblies and methods with asymmetric torque transmitting distal end edge teeth23 Jun 2026US 12,662,790 B2Pier Tech Systems, LLC
- Capping apparatus and method for in-ground heat exchangers2 Jun 2026US 12,644,627 B2Innovia Geo Corp.
- Vibration device with base frame and method for inserting into the ground or removing from the ground a foundation element by providing said vibration device5 May 2026US 12,618,215 B2Cape Holland Holding B.V.
- Foundation support pier with shaft distal end edges having different length forward and reverse torque transmitting portions1 Oct 2026US 2026/0297877 A1Pier Tech Systems, LLC
- Pile structure for an offshore wind turbine and methods of installing the same1 Oct 2026US 2026/0297881 A1Equinor Energy AS
- A monopile for a wind turbine2 Jul 2026US 2026/0185320 A1
- Devices for steel pipe pile anti-slippage with shock-absorbing airbags and methods for using the same4 Jun 2026US 2026/0152918 A1Cccc First Harbor Engineering Co., Ltd.
- Foundation support system shaft coupler fabrication and assembly16 Apr 2026US 2026/0103863 A1Pier Tech Systems, LLC
Most cited
By later US patents
- Expandable base bearing pile and method of bearing pile installation115US 6,047,505 A2000
- Frictional coupler and stiffener for strengthening a section of piling49US 6,561,736 B12003
- Pipe pier system47US 6,183,167 B2Richard D. Ruiz, LLC · 2001
- Coupling for connecting metal tubes end-to-end, particularly in marine pilings46US 4,668,119 AInnse Innocenti Santeustacchio S.p.A. · 1987
- Heavy duty foundation installation apparatus and method38US 5,944,452 A1999