| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 4 | |
| #2 | Norway | 4 | |
| #3 | Brazil | 3 | |
| #4 | Canada | 3 | |
| #5 | EPO (European Patent Office) | 3 | |
| #6 | Mexico | 3 | |
| #7 | United States | 3 | |
| #8 | WIPO (World Intellectual Property Organization) | 3 | |
| #9 | Australia | 2 | |
| #10 | Republic of Korea | 2 | |
| #11 | Singapore | 2 | |
| #12 | EAPO (Eurasian Patent Organization) | 1 | |
| #13 | Hungary | 1 | |
| #14 | Japan | 1 | |
| #15 | Russian Federation | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Engines, pumps and turbines | |
| #3 | Machines | |
| #4 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Pistons and sealings | |
| #3 | Gearing | |
| #4 | Rotary-pistons | |
| #5 | Internal-combustion piston engines | |
| #6 | Rotary pistons | |
| #7 | Unspecified technologies | |
| #8 | Climate change mitigation in transportation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Karoliussen Hilberg Inge | 10 |
| #2 | Karoliussen Hilberg | 10 |
| #3 | Karoliussen Hilberg I | 8 |
| #4 | Hilberg I Karoliussen | 4 |
| #5 | Hilberg Inge Karoliussen | 3 |
| #6 | Hilberg Karoliussen | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AU2017208691A1 | A method and a device for sealing between attachable pair of pipe flanges | |
| US2015354570A1 | Displacement type rotary machine with controlling gears | |
| NO20131286A1 | Metallic flange joint gasket |