GRAEF KARL has a total of 22 patent applications. Its first patent ever was published in 1907. It filed its patents most often in Austria, Canada and United States. Its main competitors in its focus markets thermal processes are CASAIRE LTD, BRUSS GI PROMY P BELPROMP and MERTZ EMIL.
| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 20 | |
| #2 | Canada | 1 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Air-conditioning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Graef Karl | 22 |
| #2 | Graef Heinrich | 20 |
| #3 | Graef Franz | 20 |
| Publication | Filing date | Title |
|---|---|---|
| CA160264A | Ventilator | |
| US1086160A | Ventilator. |