| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 9 | |
| #2 | South Africa | 5 | |
| #3 | EPO (European Patent Office) | 4 | |
| #4 | Canada | 3 | |
| #5 | Denmark | 3 | |
| #6 | Spain | 3 | |
| #7 | United States | 3 | |
| #8 | Australia | 2 | |
| #9 | Mexico | 2 | |
| #10 | Netherlands | 2 | |
| #11 | Yugoslavia (Serbia and Montenegro) | 2 | |
| #12 | Czechoslovakia | 1 | |
| #13 | German Democratic Republic | 1 | |
| #14 | India | 1 | |
| #15 | Japan | 1 | |
| #16 | USSR (Union of Socialist Soviet Republics) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Civil engineering | |
| #4 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Non-positive-displacement pumps | |
| #2 | Unspecified technologies | |
| #3 | Steam turbines | |
| #4 | Safety devices | |
| #5 | Special non-positive-displacement engines | |
| #6 | Air-conditioning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kolb Werner | 14 |
| #2 | Neumeier Ralf | 5 |
| #3 | Heingaertner Walter | 4 |
| #4 | Wahl Frank | 3 |
| #5 | Kolb W | 2 |
| #6 | Schilder Hans | 2 |
| #7 | Heingartner Walter | 2 |
| #8 | Froehlich Volker | 2 |
| #9 | Kolb Werner Dipl-Ing | 2 |
| #10 | Lachnit Friedrich | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE10118226C1 | Roof ventilator with conical top cover, for ventilating building, has closing device in form of annular closing cap round top cover | |
| DE10030497A1 | Axial fan with reversible flow direction | |
| DE19755615A1 | Axial fan for ventilation systems | |
| DE4423447A1 | Axial ventilator with motor=driven fan | |
| CA1280388C | Axial fan | |
| DE3608308C1 | Device for ventilation of a tunnel | |
| DE3539604C1 | Axial fan | |
| DE3403674C1 | Axial fan | |
| YU177476A | Improvement in lubrication of roller bearings | |
| NL7508507A | Method of lubricating the circular bearings of the adjustable carpet shaft stems in an axial type rotary flowing system and rotary flowing device for applying the method |