E02D 5/56
Screw piles
Official title: Screw piles {(placing piles by screwing down E02D7/22)}
E02D5/56 (Screw piles) appears on 212 US grants and 280 published applications in this corpus.
Search patents in E02D- Granted patents
- 212
- Published applications
- 280
- Assignees
- 99
- Inventors
- 388
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 3 |
| 2003 | 1 | 1 |
| 2004 | 2 | 4 |
| 2005 | 2 | 3 |
| 2006 | 4 | 3 |
| 2007 | 3 | 3 |
| 2008 | 3 | 4 |
| 2009 | 0 | 0 |
| 2010 | 2 | 5 |
| 2011 | 2 | 4 |
| 2012 | 1 | 8 |
| 2013 | 3 | 7 |
| 2014 | 3 | 9 |
| 2015 | 6 | 17 |
| 2016 | 14 | 18 |
| 2017 | 13 | 15 |
| 2018 | 14 | 7 |
| 2019 | 19 | 17 |
| 2020 | 17 | 17 |
| 2021 | 13 | 18 |
| 2022 | 9 | 18 |
| 2023 | 15 | 27 |
| 2024 | 14 | 20 |
| 2025 | 19 | 31 |
| 2026 | 15 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Post-tensioned helical anchors simultaneously spin-drilled and grouted and method therefor18 Aug 2026US 12,709,856 B2
- Composite helical anchors and piles4 Aug 2026US 12,698,610 B2Hubbell Incorporated
- Piling support arrangement14 Jul 2026US 12,680,253 B2Spinex Systems, Inc.
- Pile with an upheaval resistant sleeve30 Jun 2026US 12,668,942 B2
- Foundation support system shafts, assemblies and methods with asymmetric torque transmitting distal end edge teeth23 Jun 2026US 12,662,790 B2Pier Tech Systems, LLC
- Systems, methods, and machines for aligning and assembling truss foundations for single-axis trackers8 Oct 2026US 2026/0308863 A1Ojjo, Inc.
- 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
- Ground screw foundation1 Oct 2026US 2026/0297878 A1
- Foundation reinforcement equipment integrating ramming, vibroflotation and material feeding functions27 Aug 2026US 2026/0254334 A1Zhejiang Natural Resources Group Co., Ltd.
- Solar module array levelling mechanism and installation method20 Aug 2026US 2026/0243039 A1Pegasus Solar Inc.
Most cited
By later US patents
- Cylindrical foundation support drivable into ground with removable helix47US 5,066,168 AA. B. Chance Company · 1991
- Helice pierhead mounting plate and bolt assembly45US 7,004,683 B12006
- Precast concrete threaded pilings42US 4,239,419 A1980
- Rotary driver for pipe piling40US 6,942,430 B12005
- Method for erection of a temporary bridge, and a pile means therefor39US 4,405,262 A1983