E21B 1/28
Working with pulses
Official title: working with pulses
E21B1/28 (Working with pulses) appears on 6 US grants and 6 published applications in this corpus.
Search patents in E21B- Granted patents
- 6
- Published applications
- 6
- Assignees
- 7
- Inventors
- 8
- Latest grant
- 28 Nov 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 2 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
By publication year.
Recent patents
- Fluid pulse drilling tool28 Nov 2017US 9,828,802 B2SJM Designs Pty Ltd.
- Drilling apparatus and method10 May 2016US 9,334,692 B2Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada, Reno
- Drilling apparatus and method30 Jun 2015US 9,068,397 B2Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada, Reno
- Pulse generating device and a rock drilling rig comprising such a device13 May 2014US 8,720,602 B2Atlas Copco Rock Drills AB
- Method for breaking rock22 Feb 2011US 7,891,437 B2Sandvik Mining and Construction Oy
- Fluid pulse drilling tool30 Jul 2015US 2015/0211300 A1H.P.H.T. Drilling Tools Pty. Ltd
- Drilling apparatus and method4 Jun 2015US 2015/0152685 A1Board of Regents of the Nevada System of Higher Education, on Behalf of the Univ. of Nevada, Reno
- Drilling apparatus and method21 Feb 2013US 2013/0043075 A1Board of Regents of the Nevada System of Higher Education
- Pulse generating device and a rock drilling rig comprising such a device6 Jan 2011US 2011/0000695 A1Atlas Copco Rock Drills AB
- Method for Breaking Rock3 Jan 2008US 2008/0000666 A1Sandvik Mining and Construction Oy
Most cited
By later US patents
- Impact device with a rotable control valve6US 7,290,622 B2Sandvik Mining and Construction Oy · 2007
- Pulse generating device and a rock drilling rig comprising such a device3US 8,720,602 B2Atlas Copco Rock Drills AB · 2014
- Method for breaking rock1US 7,891,437 B2Sandvik Mining and Construction Oy · 2011