| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 3 | |
| #2 | Denmark | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Norway | 2 | |
| #5 | WIPO (World Intellectual Property Organization) | 2 | |
| #6 | Australia | 1 | |
| #7 | Brazil | 1 | |
| #8 | Finland | 1 | |
| #9 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Rotary-pistons |
| # | Name | Total Patents |
|---|---|---|
| #1 | Draaisma Rudolph | 14 |
| #2 | Reichmann Werner | 11 |
| #3 | Werner Reichmann | 1 |
| #4 | Rudolph Draaisma | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0247057A1 | High output rotary compressor | |
| AU2829584A | Compressor | |
| EP0172820A1 | Vane compressor |