E21D 9/1013
On a tool-carrier supported by a movable boom
Official title: {on a tool-carrier supported by a movable boom}
E21D9/1013 (On a tool-carrier supported by a movable boom) appears on 163 US grants and 100 published applications in this corpus.
Search patents in E21D- Granted patents
- 163
- Published applications
- 100
- Assignees
- 55
- Inventors
- 278
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 7 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 6 | 0 |
| 1987 | 8 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 2 | 0 |
| 2009 | 0 | 3 |
| 2010 | 1 | 1 |
| 2011 | 1 | 4 |
| 2012 | 1 | 1 |
| 2013 | 1 | 8 |
| 2014 | 5 | 5 |
| 2015 | 7 | 6 |
| 2016 | 3 | 2 |
| 2017 | 2 | 13 |
| 2018 | 5 | 19 |
| 2019 | 14 | 1 |
| 2020 | 11 | 10 |
| 2021 | 6 | 4 |
| 2022 | 4 | 7 |
| 2023 | 8 | 1 |
| 2024 | 2 | 4 |
| 2025 | 2 | 1 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Cutting device and support for same3 Feb 2026US 12,540,548 B2Joy Global Underground Mining LLC
- Cutting apparatus4 Nov 2025US 12,460,545 B2Sandvik Mining and Construction Oy
- Cutter head for mining machine12 Aug 2025US 12,385,395 B2Joy Global Underground Mining LLC
- Roadway/tunnel excavation robot and automatic cutting control method17 Sep 2024US 12,091,977 B2China University of Mining and Technology
- Excited-vibration disc-cutting rock-breaking device of front eccentric block3 Sep 2026US 2026/0258726 A1Taiyuan University of Science and Technology
- Cutting device and support for same16 Jul 2026US 2026/0201800 A1Joy Global Underground Mining LLC
- Integrated rapid excavation equipment for rock roadways and method thereof28 May 2026US 2026/0146533 A1China University of Mining and Technology
- Method and material removal system14 May 2026US 2026/0132715 A1Rockfeel GmbH
- Roadheader and cutter head therefor9 Oct 2025US 2025/0314172 A1Sandvik Mining and Construction Oy
Most cited
By later US patents
- Mobile mining machine and method77US 4,548,442 AThe Robbins Company · 1985
- Mining machine with driven disc cutters44US 7,934,776 B2Joy MM Delaware, Inc. · 2011
- Cutting device with rotating disc43US 6,561,590 B2Odyssey Technology Pty Ltd · 2003
- Transport apparatus and method of forming same37US 5,205,612 AZ C Mines Pty. Ltd. · 1993
- Mobile mining machine having tilted swing axis and method36US 5,234,257 AThe Robbins Company · 1993