E21B 11/00
Earth or rock drilling: other drilling tools
Official title: Other drilling tools
E21B11/00 (Earth or rock drilling: other drilling tools) appears on 170 US grants and 131 published applications in this corpus.
Search patents in E21B- Granted patents
- 170
- Published applications
- 131
- Assignees
- 85
- Inventors
- 340
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 8 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 4 |
| 2004 | 2 | 3 |
| 2005 | 1 | 2 |
| 2006 | 0 | 2 |
| 2007 | 3 | 6 |
| 2008 | 3 | 5 |
| 2009 | 2 | 3 |
| 2010 | 4 | 8 |
| 2011 | 1 | 3 |
| 2012 | 2 | 4 |
| 2013 | 2 | 4 |
| 2014 | 2 | 2 |
| 2015 | 3 | 5 |
| 2016 | 3 | 10 |
| 2017 | 5 | 7 |
| 2018 | 2 | 2 |
| 2019 | 5 | 5 |
| 2020 | 8 | 9 |
| 2021 | 8 | 8 |
| 2022 | 6 | 7 |
| 2023 | 9 | 10 |
| 2024 | 7 | 9 |
| 2025 | 10 | 4 |
| 2026 | 2 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Handheld augers operable in a normal mode and a breaker mode14 Jul 2026US 12,680,388 B2Milwaukee Electric Tool Corporation
- System and method for using controlled fractures in enhanced geothermal systems20 Jan 2026US 12,529,296 B2Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
- Weep-hole drilling2 Dec 2025US 12,486,723 B2Concore BV
- Earth auger7 Oct 2025US 12,435,578 B2Greenworks (Jiangsu) Co., Ltd.
- Hand-held power tool16 Sep 2025US 12,416,206 B2Black & Decker Inc.
- Augers8 Oct 2026US 2026/0308981 A1Milwaukee Electric Tool Corporation
- Hand-held work apparatus17 Sep 2026US 2026/0275813 A1Andreas Stihl AG & CO.KG
- System and method of manually operated drilling on an extraterrestrial surface7 May 2026US 2026/0125954 A1Honeybee Robotics, LLC
- Soil Collecting Device23 Apr 2026US 2026/0109383 A1
- Apparatus and a method of drilling holes2 Apr 2026US 2026/0092502 A1Golf & Machines Aps
Most cited
By later US patents