| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 6 | |
| #2 | WIPO (World Intellectual Property Organization) | 5 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | Australia | 2 | |
| #5 | Gulf Cooperation Council | 2 | |
| #6 | Brazil | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Measurement | |
| #3 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Testing of structures | |
| #2 | Pipes | |
| #3 | Mechanical control devices | |
| #4 | Venting or aerating devices | |
| #5 | Dry-docking of vessels |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hystad Ann Helen | 21 |
| Publication | Filing date | Title |
|---|---|---|
| GC0000396A | An arrangement for monitoring and/or testing of flange joints | |
| EP1390656A1 | An arrangement for assembly of pipe flanges, comprising spacers positioned between the pipe flanges | |
| GB0228802D0 | Arrangement at a buoy | |
| NO20011175D0 | Device by pipe flanging | |
| EP1238221A1 | Valve handwheel |