E21C 31/08
Driving means incorporated in machines for slitting or completely freeing the mineral
Official title: for adjusting parts of the machines
E21C31/08 (Driving means incorporated in machines for slitting or completely freeing the mineral) appears on 20 US grants and 22 published applications in this corpus.
Search patents in E21C- Granted patents
- 20
- Published applications
- 22
- Assignees
- 16
- Inventors
- 66
- Latest grant
- 19 Dec 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 4 |
| 2019 | 2 | 1 |
| 2020 | 5 | 6 |
| 2021 | 3 | 2 |
| 2022 | 4 | 1 |
| 2023 | 2 | 0 |
By publication year. Applications have been published since 2001.
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Most cited
By later US patents
- Rock cutting device4US 10,533,416 B2Joy Global Underground Mining LLC · 2020
- Mineral winning plough3US 4,548,444 AGewerkschaft Eisenhutte Westfalia · 1985
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- Machine supporting rock cutting device1US 10,550,693 B2Joy Global Underground Mining LLC · 2020
- Mining machine with articulating boom and independent material handling system1US 10,876,400 B2Joy Global Underground Mining LLC · 2020