E21C 27/124
With rotatable cutters provided with breaking-down members
Official title: {with rotatable cutters provided with breaking-down members}
E21C27/124 (With rotatable cutters provided with breaking-down members) appears on 7 US grants and 5 published applications in this corpus.
Search patents in E21C- Granted patents
- 7
- Published applications
- 5
- Assignees
- 7
- Inventors
- 17
- Latest grant
- 19 Jul 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 2 |
| 2022 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Mining machine with articulating boom and independent material handling system19 Jul 2022US 11,391,149 B2Joy Global Underground Mining LLC
- Heading machine with cusp cutter12 Apr 2022US 11,299,987 B2Sandvik Mining and Construction Oy
- Cutting apparatus29 Jun 2021US 11,047,235 B2Sandvik Intellectual Property AB
- Mining machine with articulating boom and independent material handling system29 Dec 2020US 10,876,400 B2Joy Global Underground Mining LLC
- Mining machine having an extendable and retractable rotor arm and method of repairing an extendable and retractable rotor arm assembly13 Aug 2002US 6,431,654 B1Eimco LLC
- Mining machine with articulating boom and independent material handling system8 Apr 2021US 2021/0102463 A1Joy Global Underground Mining LLC
- Heading machine with cusp cutter18 Feb 2021US 2021/0047926 A1Sandvik Mining and Construction Oy
- Cutting apparatus30 Apr 2020US 2020/0131904 A1Sandvik Intellectual Property AB
- Mining machine with articulating boom and independent material handling system22 Feb 2018US 2018/0051562 A1Joy MM Delaware, Inc.
- Soil trimming tool and methods of using same3 Oct 2013US 2013/0255112 A1
Most cited
By later US patents
- Mining machine having an extendable and retractable rotor arm and method of repairing an extendable and retractable rotor arm assembly7US 6,431,654 B1Eimco LLC · 2002
- Rotary mine boring head having movable links with cutter bits4US 5,439,274 APrairie Machine & Parts Mfg. Ltd. · 1995
- Tunnel excavator with S-shaped soil plate3US 6,305,754 B1Ishikawajima-Harima Heavy Industries Co., Ltd. · 2001
- Mining machine with articulating boom and independent material handling system1US 10,876,400 B2Joy Global Underground Mining LLC · 2020
- Mining machine with articulating boom and independent material handling system1US 11,391,149 B2Joy Global Underground Mining LLC · 2022