E21B 7/027
Drills for drilling shallow holes
Official title: {Drills for drilling shallow holes, e.g. for taking soil samples or for drilling postholes}
E21B7/027 (Drills for drilling shallow holes) appears on 209 US grants and 155 published applications in this corpus.
Search patents in E21B- Granted patents
- 209
- Published applications
- 155
- Assignees
- 113
- Inventors
- 429
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 4 |
| 2004 | 4 | 3 |
| 2005 | 1 | 1 |
| 2006 | 0 | 5 |
| 2007 | 1 | 1 |
| 2008 | 4 | 6 |
| 2009 | 4 | 7 |
| 2010 | 5 | 3 |
| 2011 | 1 | 1 |
| 2012 | 2 | 3 |
| 2013 | 0 | 5 |
| 2014 | 1 | 3 |
| 2015 | 4 | 7 |
| 2016 | 1 | 6 |
| 2017 | 7 | 15 |
| 2018 | 10 | 15 |
| 2019 | 10 | 13 |
| 2020 | 18 | 7 |
| 2021 | 15 | 11 |
| 2022 | 9 | 10 |
| 2023 | 9 | 9 |
| 2024 | 12 | 10 |
| 2025 | 12 | 4 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Compact portable rock drill system23 Jun 2026US 12,662,881 B2Minnich Manufacturing Company, Inc.
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- Mobile coring machine with adjustable mast17 Mar 2026US 12,577,835 B1Utilicor Technologies Inc.
- Augers8 Oct 2026US 2026/0308981 A1Milwaukee Electric Tool Corporation
- Drill rig with detachable, modular frame24 Sep 2026US 2026/0286780 A1
- Concrete Slab Rebar Hole Dowling Cart18 Jun 2026US 2026/0168331 A1
- Method and device for making a hole in a golf green23 Apr 2026US 2026/0110219 A1KSAB Utemiljö AB
- Apparatus and a method of drilling holes2 Apr 2026US 2026/0092502 A1Golf & Machines Aps
Most cited
By later US patents