| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Denmark | 8 | |
| #2 | Canada | 1 | |
| #3 | Switzerland | 1 | |
| #4 | France | 1 | |
| #5 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Heat-exchanger without contact | |
| #3 | Pipe-line systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ikas Isolering As | 1 |
| #2 | Durup Jakob J | 1 |
| #3 | Selsing B | 1 |
| #4 | Jakob Jakobsen Durup | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1081889A | Improvements in and relating to pipelines | |
| CA826485A | Device for transferring heat to a pipeline |