| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 4 | |
| #2 | Australia | 2 | |
| #3 | United States | 2 | |
| #4 | South Africa | 2 | |
| #5 | Canada | 1 | |
| #6 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Grinding or polishing devices | |
| #2 | Grinding tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Siden Jan | 8 |
| #2 | Siden J | 4 |
| #3 | Jan Siden | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US5138797A | Grinding guide assembly for a hand-held grinding machine for buttons of a button drill bit | |
| CA1322459C | Abrasive wheel | |
| AU3503689A | An abrasive wheel | |
| ZA8903776B | An abrasive wheel | |
| SE8702383D0 | Grinding device for pin drill crown | |
| SE8502832D0 | Wheel for grinding rock drilling crowns |