| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 4 | |
| #2 | Denmark | 3 | |
| #3 | Finland | 3 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | WIPO (World Intellectual Property Organization) | 2 | |
| #6 | Australia | 1 | |
| #7 | Brazil | 1 | |
| #8 | Canada | 1 | |
| #9 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Finishing work on buildings | |
| #2 | Construction of roads | |
| #3 | Shaping clay | |
| #4 | Scaffolding | |
| #5 | General building constructions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Johansson Lennart | 13 |
| #2 | Ljungkvist Stig-Aoke | 5 |
| #3 | Ljungkvist Stig-Ake | 4 |
| #4 | Johansson L | 3 |
| #5 | Ljungkvist Stig-Aake | 3 |
| #6 | Ljungkvist S-A | 3 |
| #7 | Stig-Ake Ljungkvist | 1 |
| #8 | Lennart Johansson | 1 |
| #9 | Aaberg U | 1 |
| #10 | Ljungkvist Stig Aake | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA1202502A | Arrangement for laying concrete floor | |
| EP0116557A1 | A technique for the location of expansion joints when casting a concrete bed. | |
| BR8307550A | A technique for the location of expansion joints in the launch of a concrete bed | |
| EP0096036A1 | Arrangement for the production of longitudinal screed slabs consisting of concrete. | |
| DK462781A | Device for use by casting floors of concrete |