| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 12 | |
| #2 | United States | 4 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Engines, pumps and turbines | |
| #3 | Machines | |
| #4 | Measurement | |
| #5 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Graf Johann | 18 |
| #2 | Steinbrueck Martin | 2 |
| #3 | Johann Graf | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0525647A1 | Heating device for the interior of a caravan, mobile home etc. | |
| EP0525618A2 | Bench for mobile homes, vans or the like |