| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 6 | |
| #2 | Germany | 6 | |
| #3 | Switzerland | 4 | |
| #4 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Chemical engineering | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Non-positive-displacement pumps | |
| #2 | Lubricating | |
| #3 | Boiling machines | |
| #4 | Pumps | |
| #5 | Siphons |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schuetze Giesserei Maschinenfa | 3 |
| #2 | Maschinenfabrik Oggersheim Gie | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE611356C | Centrifugal pump impeller | |
| DE551999C | Centrifugal pump | |
| DE449797C | Device for returning the cracking fluid to the suction line of a centrifugal or similar pump | |
| DE425572C | Cooling device for bearings with oil space | |
| DE580511C | Cooking kettle with equipment for automatic stirring or mixing of the food | |
| DE665421C | Device for sealing a centrifugal pump for acids, alkalis or the like. |