| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 7 | |
| #2 | Australia | 6 | |
| #3 | WIPO (World Intellectual Property Organization) | 6 | |
| #4 | Brazil | 5 | |
| #5 | EPO (European Patent Office) | 5 | |
| #6 | United States | 4 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hedelin Lars | 25 |
| #2 | Hedelin Lars G | 5 |
| #3 | Hedelin L | 3 |
| Publication | Filing date | Title |
|---|---|---|
| EP0836675A1 | Arrangement in a cylinder head | |
| AU4684096A | A device in a cylinder head for an internal combustion engine | |
| BR9307238A | Sliding vane machine | |
| BR9306645A | Process and device for adjusting the compression ratio of an internal combustion engine | |
| BR9306646A | Process for controlling the operating cycle of an internal combustion piston engine and internal combustion piston engine | |
| AU4520693A | A method and a device for supplying air to an internal combustion engine |