E21C 35/12
Along a conveyor for the cut material
Official title: along a conveyor for the cut material
E21C35/12 (Along a conveyor for the cut material) appears on 125 US grants and 49 published applications in this corpus.
Search patents in E21C- Granted patents
- 125
- Published applications
- 49
- Assignees
- 36
- Inventors
- 155
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 8 | 0 |
| 1978 | 11 | 0 |
| 1979 | 4 | 0 |
| 1980 | 6 | 0 |
| 1981 | 10 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 3 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 4 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 1 | 4 |
| 2012 | 0 | 2 |
| 2013 | 5 | 2 |
| 2014 | 2 | 2 |
| 2015 | 3 | 5 |
| 2016 | 2 | 3 |
| 2017 | 3 | 6 |
| 2018 | 3 | 4 |
| 2019 | 3 | 0 |
| 2020 | 5 | 4 |
| 2021 | 3 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 4 |
| 2025 | 1 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rotary boring mining machine inertial steering system7 Apr 2026US 12,595,733 B2The Mosaic Company
- Rackbar rotation limit24 Mar 2026US 12,584,409 B2Joy Global Underground Mining LLC
- Guide shoe for mining machine5 Aug 2025US 12,378,883 B2Joy Global Underground Mining LLC
- Rotary boring mining machine inertial steering system18 Jun 2024US 12,012,855 B2The Mosaic Company
- Rotary boring mining machine inertial steering system19 Jul 2022US 11,391,150 B2The Mosaic Company
- Guide shoe for mining machine2 Apr 2026US 2026/0092521 A1Joy Global Underground Mining LLC
- Rotary boring mining machine inertial steering system26 Sep 2024US 2024/0318552 A1The Mosaic Company
- Rackbar rotation limit12 Sep 2024US 2024/0301793 A1Joy Global Underground Mining LLC
- Guide shoe for mining machine18 Jul 2024US 2024/0240559 A1Joy Global Underground Mining LLC
- Guide shoe for mining machine6 Jun 2024US 2024/0183272 A1Joy Global Underground Mining LLC
Most cited
By later US patents
- Apparatus for controlling the position of a mineral mining machine108US 4,571,003 AGewerkschaft Eisenhutte Westfalia · 1986
- Guides for mineral mining machines20US 4,391,471 AGewerkschaft Eisenhutte Westfalia · 1983
- Apparatus for automatically adjusting the cutting horizon of a mining extraction apparatus19US 5,553,925 AWestfalia Becorit Industrietechnik GmbH · 1996
- Guides for mineral mining machines18US 4,474,411 AGewerkschaft Eisenhutte Westfalia · 1984
- Tightening arrangement for longwall mining machine cable and conveyor16US 4,037,876 AGewerkschaft Eisenhutte Westfalia · 1977