| Patent | Date |
|---|
Arrangement and method for installing casing
Grant 11,319,755 - Keskiniva May 3, 2 | 2022-05-03 |
Arrangement and Method for Installing Casing
App 20210062586 - Keskiniva; Markku | 2021-03-04 |
Release Assembly For Percussion Drill Tools
App 20190119992 - KESKINIVA; Markku | 2019-04-25 |
Method and arrangement for lubricating drill shank of rock drilling machine
Grant 9,138,879 - Keskiniva , et al. September 22, 2 | 2015-09-22 |
Percussion device
Grant 9,108,311 - Keskiniva , et al. August 18, 2 | 2015-08-18 |
Sealing arrangement in rotating control valve of pressure fluid-operated percussion device
Grant 9,067,310 - Keskiniva , et al. June 30, 2 | 2015-06-30 |
Release Assembly And Method Of Forming Drilling Tool
App 20150117940 - ESKO; Mauri ; et al. | 2015-04-30 |
Fuel Tank
App 20140305707 - Leppanen; Jarmo ; et al. | 2014-10-16 |
Pneumatic down-the-hole drill
App 20140224544 - Leppanen; Jarmo ; et al. | 2014-08-14 |
Rock Drill Bit And A Drilling Assembly For Percussive Rock Drilling
App 20130180784 - Esko; Mauri ; et al. | 2013-07-18 |
Rock Drill Bit For Percussive Drilling And A Rock Drill Bit Button
App 20130180785 - Esko; Mauri ; et al. | 2013-07-18 |
Method and Arrangement for Lubricating Drill Shank of Rock Drilling Machine
App 20120292114 - Keskiniva; Markku ; et al. | 2012-11-22 |
Impact device and method for generating stress pulse therein
Grant 8,151,901 - Keskiniva , et al. April 10, 2 | 2012-04-10 |
Percussion Device
App 20120018182 - Keskiniva; Markku ; et al. | 2012-01-26 |
Sealing Arrangement In Rotating Control Valve Of Pressure Fluid-operated Percussion Device
App 20120018657 - Keskiniva; Markku ; et al. | 2012-01-26 |
Percussion device
Grant 8,061,434 - Keskiniva , et al. November 22, 2 | 2011-11-22 |
Measuring device, rock breaking device and method of measuring stress wave
Grant 7,895,900 - Keskiniva , et al. March 1, 2 | 2011-03-01 |
Method for breaking rock
Grant 7,891,437 - Keskiniva , et al. February 22, 2 | 2011-02-22 |
Pressure-fluid-operated percussion device
Grant 7,878,263 - Keskiniva , et al. February 1, 2 | 2011-02-01 |
Method for controlling pressure fluid operated percussion device, and percussion device
Grant 7,836,969 - Ahola , et al. November 23, 2 | 2010-11-23 |
Method and rock drilling rig for hole drilling
Grant 7,743,851 - Keskiniva , et al. June 29, 2 | 2010-06-29 |
Measuring Device, Rock Breaking Device And Method Of Measuring Stress Wave
App 20100147084 - Keskiniva; Markku ; et al. | 2010-06-17 |
Method for controlling percussion device, software production, and percussion device
Grant 7,717,190 - Keskiniva , et al. May 18, 2 | 2010-05-18 |
Coupling Arrangement For Coupling Rock Drill Shank
App 20100116518 - Esko; Mauri ; et al. | 2010-05-13 |
Method for Controlling Pressure Fluid Operated Percussion Device, and Percussion Device
App 20090266568 - Ahola; Erkki ; et al. | 2009-10-29 |
Method for controlling percussion device, software production, and percussion device
App 20090188686 - Keskiniva; Markku ; et al. | 2009-07-30 |
Method and Rock Drilling Rig for Hole Drilling
App 20090065256 - Keskiniva; Markku ; et al. | 2009-03-12 |
Percussion Device
App 20090025948 - Keskiniva; Markku ; et al. | 2009-01-29 |
Percussion device with a transmission element compressing an elastic energy storing material
Grant 7,441,608 - Keskiniva , et al. October 28, 2 | 2008-10-28 |
Method of generating stress pulse in tool by means of pressure fluid operated impact device, and impact device
Grant 7,322,425 - Keskiniva , et al. January 29, 2 | 2008-01-29 |
Method for Breaking Rock
App 20080000666 - Keskiniva; Markku ; et al. | 2008-01-03 |
Impact device with a rotable control valve
Grant 7,290,622 - Keskiniva , et al. November 6, 2 | 2007-11-06 |
Percussion device with a transmission element compressing an elastic energy storing material
App 20070246236 - Keskiniva; Markku ; et al. | 2007-10-25 |
Pressure-Fluid-Operated Percussion Device
App 20070199725 - Keskiniva; Markku ; et al. | 2007-08-30 |
Percussion device with a transmission element compressing an elastic energy storing material
Grant 7,252,154 - Keskiniva , et al. August 7, 2 | 2007-08-07 |
Control valve and a method for a percussion device with a working cycle involving several coupling moments
Grant 7,178,447 - Koskimaki , et al. February 20, 2 | 2007-02-20 |
Control valve in a percussion device and a method comprising a closed pressure space at the end position of the piston
Grant 7,174,824 - Koskimaki , et al. February 13, 2 | 2007-02-13 |
Method and arrangement of controlling of percussive drilling based on the stress level determined from the measured feed rate
Grant 7,114,576 - Keskiniva October 3, 2 | 2006-10-03 |
Method of generating stress pulse in tool by means of pressure fluid operated impact device, and impact device
App 20060185864 - Keskiniva; Markku ; et al. | 2006-08-24 |
Control valve in a percussion device and a method comprising a closed pressure space at the end position of the piston
App 20060175091 - Koskimaki; Antti ; et al. | 2006-08-10 |
Control valve and a method for a percussion device with a working cycle involving several coupling moments
App 20060169468 - Koskimaki; Antti ; et al. | 2006-08-03 |
Impact device and method for generating stress pulse therein
App 20060157259 - Keskiniva; Markku ; et al. | 2006-07-20 |
Method and apparatus for monitoring operation of percussion device
Grant 7,051,525 - Keskiniva , et al. May 30, 2 | 2006-05-30 |
Impact device
Grant 7,013,996 - Keskiniva , et al. March 21, 2 | 2006-03-21 |
Impact device with a rotable control valve
App 20060032649 - Keskiniva; Markku ; et al. | 2006-02-16 |
Method and equipment for controlling operation of rock drilling apparatus
Grant 6,938,702 - Saha , et al. September 6, 2 | 2005-09-06 |
Percussion device with a transmission element compressing an elastic energy storing material
App 20050139368 - Keskiniva, Markku ; et al. | 2005-06-30 |
Method and arrangement of controlling of percussive drilling based on the stress level determined from the measured feed rate
App 20040251049 - Keskiniva, Markku | 2004-12-16 |
Method and apparatus for monitoring operation of percussion device
App 20040244493 - Keskiniva, Markku ; et al. | 2004-12-09 |
Impact device
App 20040226752 - Keskiniva, Markku ; et al. | 2004-11-18 |
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