Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12330281 | Piston guiding element, rock drilling machine and method | Lars Kandelin, Mikko Hamalainen, Timo KELA, Matti Viinikka, Esa Laakkola | 2025-06-17 |
| 12005558 | Rock drilling arrangement and machine | Mikko Hamalainen, Matti Viinikka | 2024-06-11 |
| 10550685 | Component for rock breaking system | Noora Kalevo, Vesa Uitto, Tuomo Pirinen | 2020-02-04 |
| 10012024 | Control valve | Timo LEINO, Timo Muuttonen, Ari Kotala | 2018-07-03 |
| 9981370 | Breaking device | Timo KELA, Timo Muuttonen | 2018-05-29 |
| 9737983 | Percussion piston | Timo Muuttonen, Ari Kotala, Timo LEINO | 2017-08-22 |
| 8800425 | Percussion device | Ari Kotala | 2014-08-12 |
| 7464635 | Percussion device with a control valve for two alternately striking pistons | Esa Rantala, Jarmo Heinonen | 2008-12-16 |
| 7178447 | Control valve and a method for a percussion device with a working cycle involving several coupling moments | Markku Keskiniva, Jorma Maki, Mauri Esko, Erkki Ahola, Aimo Helin | 2007-02-20 |
| 7174824 | Control valve in a percussion device and a method comprising a closed pressure space at the end position of the piston | Markku Keskiniva, Jorma Maki, Erkki Ahola | 2007-02-13 |
| 6938702 | Method and equipment for controlling operation of rock drilling apparatus | Heikki Saha, Markku Keskiniva, Esa Rantala, Tapani Pöysti, Vesa Peltonen +4 more | 2005-09-06 |
| 6877569 | Method for controlling operating cycle of impact device, and impact device | — | 2005-04-12 |