| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 3 | |
| #2 | Canada | 2 | |
| #3 | Australia | 1 | |
| #4 | Germany | 1 | |
| #5 | United Kingdom | 1 | |
| #6 | Norway | 1 | |
| #7 | United States | 1 | |
| #8 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Grinding tools | |
| #2 | Grinding or polishing devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Siden Jan | 8 |
| #2 | Siden J | 3 |
| Publication | Filing date | Title |
|---|---|---|
| CA1233024A | Abrasive wheel for pin bore crowns | |
| SE8106978L | Arrangement for grinding of drill bits | |
| SE7907575L | Arrangement for restoring the shape of worn boring bits by grinding |