E21D 9/1033
By a transversely extending boom being pivotable about a longitudinal axis
Official title: {by a transversely extending boom being pivotable about a longitudinal axis}
E21D9/1033 (By a transversely extending boom being pivotable about a longitudinal axis) appears on 17 US grants and 7 published applications in this corpus.
Search patents in E21D- Granted patents
- 17
- Published applications
- 7
- Assignees
- 11
- Inventors
- 23
- Latest grant
- 16 Jun 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 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 | 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 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 5 |
| 2018 | 0 | 2 |
| 2019 | 5 | 0 |
| 2020 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Cutting apparatus16 Jun 2020US 10,683,751 B2Sandvik Intellectual Property AB
- Device for the installation of rock bolts and cutting apparatus11 Feb 2020US 10,557,348 B2Sandvik Intelectual Property AB
- Cutting apparatus using a clearing arrangement1 Oct 2019US 10,428,651 B2Sandvik Intellectual Property AB
- Cutting apparatus and method of operating30 Jul 2019US 10,364,674 B2Sandvik Intellectual Property AB
- Cutting apparatus30 Jul 2019US 10,364,675 B2Sandvik Intellectual Property AB
- Cutting apparatus using a clearing arrangement9 Aug 2018US 2018/0223662 A1Sandvik Intelectual Property AB
- Cutting apparatus2 Aug 2018US 2018/0216460 A1Sandvik Intelectual Property AB
- Cutting apparatus26 Oct 2017US 2017/0306756 A1Sandvik Intelectual Property AB
- Cutting apparatus and method of operating26 Oct 2017US 2017/0306758 A1Sandvik Intelectual Property AB
- Cutting apparatus and method of operating26 Oct 2017US 2017/0306759 A1Sandvik Intelectual Property AB
Most cited
By later US patents
- Underground mining machine having temporary roof support means and roof bolting means associated therewith24US 4,199,193 AAcme Machinery Company · 1980
- Cutting machine22US 4,589,701 AGewerkschaft Eisenhutte Westfalia · 1986
- Machine for mechanically advancing clean cut underground mining galleries of various profiles8US 4,185,873 ABochumer Eisenhutte Heintzmann GmbH & Co. KG · 1980
- Tunneling machine with plural adjustable arms carrying single cutter7US 4,169,629 A1979
- Apparatus for cutting excavations having a substantially planar face5US 4,711,502 AVoest-Alpine Aktiengesellschaft · 1987