| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 13 | |
| #2 | EPO (European Patent Office) | 5 | |
| #3 | Czechoslovakia | 2 | |
| #4 | German Democratic Republic | 2 | |
| #5 | United States | 2 | |
| #6 | Belgium | 1 | |
| #7 | Canada | 1 | |
| #8 | Switzerland | 1 | |
| #9 | Denmark | 1 | |
| #10 | Spain | 1 | |
| #11 | France | 1 | |
| #12 | Hungary | 1 | |
| #13 | Italy | 1 | |
| #14 | Netherlands | 1 | |
| #15 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Electrical machinery and energy | |
| #3 | Textiles and paper | |
| #4 | Machines | |
| #5 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Non-positive-displacement pumps | |
| #2 | Steam turbines | |
| #3 | Milling | |
| #4 | Rotary-pistons | |
| #5 | Sewing | |
| #6 | Dynamo-electric machines | |
| #7 | Animal catching |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schweinfurter Friedrich | 29 |
| #2 | Schweinfurten Fridrich | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE3427112A1 | SIDE CHANNEL PUMP WITH FORCE COMPENSATION | |
| DE3313447A1 | Wet comminuting machine | |
| DE3313446A1 | Liquid ring pump | |
| DE3303460A1 | SELF-PRIMING SIDE CHANNEL PUMP | |
| DE3223868A1 | TURBINE PUMP | |
| DE3128372A1 | "PERIPHERAL CHANNEL PUMP" | |
| DE3128374A1 | RADIAL BLADE SUPPORTED SIDE CHANNEL PUMP | |
| DE3014425A1 | SIDE CHANNEL PUMP | |
| DE2915867A1 | MULTI-STAGE SIDE CHANNEL PUMP | |
| DE2712568A1 | Electric motor housing MFG - uses cup-shaped housing halves moved together with contacting edges joined and sealed externally |