Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12303983 | Control system for grinding apparatus | Bjorn Sjolander | 2025-05-20 |
| 10046435 | Grinding apparatus with load control | Bjorn Sjolander | 2018-08-14 |
| 8827773 | Manual locking means for bit holder with micro/macro adjustment | Bjorn Sjolander, Robert Sjolander | 2014-09-09 |
| 7811155 | Grinding member for buttons on rock drill bit | Bjorn Sjolander, Robert Sjolander | 2010-10-12 |
| 7402093 | Grinding apparatus for buttons on rock drill bit | Bjorn Sjolander, Robert Sjolander | 2008-07-22 |
| 7198556 | Grinding apparatus | Robert Sjolander, Bjorn Sjolander | 2007-04-03 |
| 6835114 | Grinding tool for buttons of a rock drill bit | — | 2004-12-28 |
| 5727994 | Grinding cup and holder device | Kurt Robert Sjolander | 1998-03-17 |
| 5639273 | Grinding cup and holder device | Kurt Robert Sjolander | 1997-06-17 |
| 5527206 | Holder device | Robert Sjolander | 1996-06-18 |