Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12270299 | Scraper, rock drilling unit and method | Johannes Hakulinen, Sirpa Launis, Jussi Huhtanen | 2025-04-08 |
| 11118402 | Rock drilling machine, rock drilling rig and measuring method | Timo LEINO, Sirpa Launis | 2021-09-14 |
| 9138879 | Method and arrangement for lubricating drill shank of rock drilling machine | Markku Keskiniva, Mauri Esko, Aimo Helin | 2015-09-22 |
| 9108311 | Percussion device | Markku Keskiniva, Mauri Esko | 2015-08-18 |
| 9067310 | Sealing arrangement in rotating control valve of pressure fluid-operated percussion device | Markku Keskiniva, Mauri Esko | 2015-06-30 |
| 7836969 | Method for controlling pressure fluid operated percussion device, and percussion device | Erkki Ahola, Mauri Esko, Aimo Helin, Markku Keskiniva, Jorma Maki | 2010-11-23 |
| 7743851 | Method and rock drilling rig for hole drilling | Markku Keskiniva, Mauri Esko, Jorma Maki, Aimo Helin, Erkki Ahola | 2010-06-29 |