| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Denmark | 4 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Australia | 1 | |
| #5 | Finland | 1 | |
| #6 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Environmental technology | |
| #3 | Engines, pumps and turbines | |
| #4 | Chemical engineering | |
| #5 | Civil engineering | |
| #6 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Air-conditioning | |
| #2 | Climate change mitigation in buildings | |
| #3 | Non-positive-displacement pumps | |
| #4 | Doors and windows | |
| #5 | Animal care | |
| #6 | Separation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Staehr Preben | 12 |
| Publication | Filing date | Title |
|---|---|---|
| WO2005061078A1 | Air cleansing apparatus | |
| WO2005010313A1 | System for shielding a building opening | |
| DK76092D0 | Filter bag for ventilation | |
| DK76192D0 | Heat exchangers for ventilation systems | |
| DK615289D0 | Heat recovery fan | |
| DK599588D0 | Heat recovery fan |