E02D 5/44
With enlarged footing or enlargements at the bottom of the pile
Official title: with enlarged footing or enlargements at the bottom of the pile
E02D5/44 (With enlarged footing or enlargements at the bottom of the pile) appears on 85 US grants and 63 published applications in this corpus.
Search patents in E02D- Granted patents
- 85
- Published applications
- 63
- Assignees
- 51
- Inventors
- 149
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 1 |
| 2004 | 2 | 6 |
| 2005 | 2 | 2 |
| 2006 | 3 | 3 |
| 2007 | 2 | 4 |
| 2008 | 2 | 4 |
| 2009 | 4 | 2 |
| 2010 | 0 | 1 |
| 2011 | 1 | 4 |
| 2012 | 1 | 1 |
| 2013 | 2 | 0 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 0 | 3 |
| 2017 | 3 | 3 |
| 2018 | 0 | 0 |
| 2019 | 4 | 2 |
| 2020 | 2 | 4 |
| 2021 | 4 | 6 |
| 2022 | 3 | 3 |
| 2023 | 5 | 2 |
| 2024 | 1 | 4 |
| 2025 | 3 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Substrate foundation support10 Feb 2026US 12,546,085 B2Parsons Corporation
- System and method for installing an aggregate pier27 Jan 2026US 12,534,866 B2Geopier Foundation Company, Inc.
- Laterally expanded capacity-enhanced piles and anchors16 Dec 2025US 12,497,746 B2Arrowhead Center, Inc.
- Post hole belling auger14 Oct 2025US 12,442,151 B2Jess Tools, LLC
- Methods and apparatuses for compacting soil and granular materials3 Jun 2025US 12,320,090 B2Geopier Foundation Company, Inc.
- Foundation reinforcement equipment integrating ramming, vibroflotation and material feeding functions27 Aug 2026US 2026/0254334 A1Zhejiang Natural Resources Group Co., Ltd.
- Post Hole Belling Auger5 Feb 2026US 2026/0035873 A1Jess Tools, LLC
- Methods and apparatus for building expanded shaft augured foundation elements3 Apr 2025US 2025/0109564 A1Geopier Foundation Company, Inc.
- Laterally expanded capacity-enhanced piles and anchors13 Feb 2025US 2025/0052026 A1Arrowhead Center, Inc.
- System and Method for Installing an Aggregate Pier1 Aug 2024US 2024/0254713 A1Geopier Foundation Company, Inc.
Most cited
By later US patents
- Expandable base bearing pile and method of bearing pile installation115US 6,047,505 A2000
- Splay bottom fluted metal piles110US 4,685,834 ASunohio Company · 1987
- Method of obtaining sufficient supporting force for a concrete pile sunk into a hole76US 4,116,012 ANippon Concrete Industries Co. Ltd. · 1978
- Short aggregate piers and method and apparatus for producing same47US 5,249,892 A1993
- Method and apparatus for rotary mining39US 6,065,551 AG & G Gas, Inc. · 2000