E21C 37/00
Mining or quarrying: other methods or devices for dislodging with or without
Official title: Other methods or devices for dislodging with or without loading (breaking-down by means inserted in slits E21C27/14)
E21C37/00 (Mining or quarrying: other methods or devices for dislodging with or without) appears on 338 US grants and 255 published applications in this corpus.
Search patents in E21C- Granted patents
- 338
- Published applications
- 255
- Assignees
- 222
- Inventors
- 784
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 9 | 0 |
| 1978 | 12 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 7 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 7 | 0 |
| 1992 | 6 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 0 |
| 2002 | 7 | 4 |
| 2003 | 4 | 3 |
| 2004 | 4 | 7 |
| 2005 | 6 | 7 |
| 2006 | 2 | 10 |
| 2007 | 4 | 4 |
| 2008 | 6 | 4 |
| 2009 | 3 | 5 |
| 2010 | 2 | 7 |
| 2011 | 4 | 8 |
| 2012 | 4 | 7 |
| 2013 | 11 | 12 |
| 2014 | 7 | 11 |
| 2015 | 6 | 10 |
| 2016 | 13 | 9 |
| 2017 | 5 | 24 |
| 2018 | 6 | 10 |
| 2019 | 17 | 17 |
| 2020 | 16 | 12 |
| 2021 | 12 | 8 |
| 2022 | 9 | 17 |
| 2023 | 15 | 22 |
| 2024 | 15 | 10 |
| 2025 | 17 | 17 |
| 2026 | 6 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E21C 37/06Mining or quarrying: other methods or devices for dislodging with or without106
- E21C 37/16Mining or quarrying: other methods or devices for dislodging with or without82
- E21C 37/18Mining or quarrying: other methods or devices for dislodging with or without57
- E21C 37/04Mining or quarrying: other methods or devices for dislodging with or without29
- E21C 37/22Hand tools or hand-held power-operated tools specially adapted for dislodging minerals17
- E21C 37/02Mining or quarrying: other methods or devices for dislodging with or without14
- E21C 37/005Mining or quarrying: other methods or devices for dislodging with or without10
- E21C 37/20Mining or quarrying: other methods or devices for dislodging with or without3
All 9 subgroupsShow fewer
Recent patents
- Method and device for preventing rib spalling in high-stress surrounding rock by hydraulic slotting22 Sep 2026US 12,742,388 B2China University of Mining and Technology
- Millimeter-wave directed-energy excavation15 Sep 2026US 12,735,985 B2Massachusetts Institute of Technology
- High power laser tunneling mining and construction equipment and methods of use25 Aug 2026US 12,715,063 B2Foro Energy, Inc.
- Explosive cartridge delivery tube14 Jul 2026US 12,680,800 B2Shan Xi Hui Feng Special Motor Vehicle Co., Ltd.
- Triggering explosives in holes9 Jun 2026US 12,650,284 B2Olitek Pty Ltd
- Triggering explosives in holes17 Sep 2026US 2026/0276352 A1Olitek Pty Ltd
- Wellbore controllable chamber-forming granular-flow mining system6 Aug 2026US 2026/0226817 A1Blueland Technology Limited
- Apparatus and methods for drilled hole locating and assessing, and payload delivery into a hole23 Jul 2026US 2026/0208654 A1Jevons IP Pty Limited
- System for in situ resource utilization in extraterrestrial environments25 Jun 2026US 2026/0176968 A1Honeybee Robotics, LLC
- Pre-split roof caving method based on collaboration of foam fracturing and blasting for coal mines18 Jun 2026US 2026/0168377 A1Shandong University of Science and Technology
Most cited
By later US patents
- Portable electrohydraulic mining drill168US 5,896,938 ATetra Corporation · 1999
- Hydraulic fracturing of ore bodies91US 6,123,394 ACommonwealth Scientific and Industrial Research Organisation · 2000
- Pulsed electric rock drilling apparatus80US 7,416,032 B2Tetra Corporation · 2008
- Method and apparatus for blasting hard rock79US 5,573,307 AMaxwell Laboratories, Inc. · 1996
- Method of drilling using pulsed electric drilling67US 7,530,406 B2Tetra Corporation · 2009