| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 3 | |
| #2 | Canada | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | United States | 2 | |
| #5 | WIPO (World Intellectual Property Organization) | 2 | |
| #6 | Australia | 1 | |
| #7 | Israel | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Measurement | |
| #3 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Accessories for machine tools | |
| #3 | Measuring length, angles and areas |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ericsson Claes | 11 |
| #2 | Sahlgren Bengt | 11 |
| #3 | Stubbe Raoul | 11 |
| #4 | Ramqvist T | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US6023325A | Arrangement for sensing elastic deformation in a tool stem in a machine tool | |
| WO9625584A1 | Apparatus for determining the curvature of an elongated hole, such as a drill hole, in rock for instance | |
| SE8700226D0 | Arrangement for orienting the angular position of a bore crown around the centre line of the borehole when drilling long holes |