E21C 35/125
Means for inclining the conveyor
Official title: {Means for inclining the conveyor}
E21C35/125 (Means for inclining the conveyor) appears on 18 US grants and 2 published applications in this corpus.
Search patents in E21C- Granted patents
- 18
- Published applications
- 2
- Assignees
- 10
- Inventors
- 22
- Latest grant
- 22 Oct 2013
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 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 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method of setting an automatic level control of the plow in plowing operations of coal mining22 Oct 2013US 8,562,077 B2RAG Aktiengesselscaft
- Apparatus for automatically adjusting the cutting horizon of a mining extraction apparatus10 Sep 1996US 5,553,925 AWestfalia Becorit Industrietechnik GmbH
- Control arrangement for adjusting the position of a mineral winning machine in a mineral mining installation16 Aug 1994US 5,338,103 AWestfalia Becorit Industrietechnik GmbH
- Hydraulic ram stroke monitoring apparatus14 Jul 1987US 4,679,429 AGewerkschaft Eisenhutte Westfalia
- Apparatus for controlling the position of a mineral mining machine18 Feb 1986US 4,571,003 AGewerkschaft Eisenhutte Westfalia
Most cited
By later US patents
- Apparatus for controlling the position of a mineral mining machine108US 4,571,003 AGewerkschaft Eisenhutte Westfalia · 1986
- Apparatus for automatically adjusting the cutting horizon of a mining extraction apparatus19US 5,553,925 AWestfalia Becorit Industrietechnik GmbH · 1996
- Apparatus for controlling the position of a mining machine10US 4,045,089 AGewerkschaft Eisenhutte Westfalia · 1977
- Method of setting an automatic level control of the plow in plowing operations of coal mining8US 8,562,077 B2RAG Aktiengesselscaft · 2013
- Apparatus for controlling the position of a mineral mining machine7US 4,492,410 AGewerkschaft Eisenhutte Westfalia · 1985