| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 6 | |
| #2 | EPO (European Patent Office) | 5 | |
| #3 | United States | 4 | |
| #4 | Japan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Measurement | |
| #3 | Electrical machinery and energy | |
| #4 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Rotary-pistons | |
| #2 | Non-positive-displacement pumps | |
| #3 | Testing of structures | |
| #4 | Siphons | |
| #5 | Analysing materials | |
| #6 | Electric discharge tubes | |
| #7 | Pumps | |
| #8 | Drying solid materials by removing liquid |
| # | Name | Total Patents |
|---|---|---|
| #1 | Buerger Heinz-Dieter | 10 |
| #2 | Saulgeot Claude | 4 |
| #3 | Handke Klaus | 2 |
| #4 | Braunschweig Falk Dr | 2 |
| #5 | Buerger Heinz D | 2 |
| #6 | Burger Heinz-Dieter | 2 |
| #7 | Bissinger Peter | 1 |
| #8 | Burger Heinz Dieter | 1 |
| #9 | Buerger Heinz Dieter | 1 |
| #10 | Braunschweig Falk | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE4026670A1 | Mechanical vacuum pump | |
| EP0432305A1 | Method and apparatus for leak detection | |
| US4983829A | Method for analyzing gases according to the counter flow principle | |
| DE3828608A1 | Vacuum-pump device | |
| DE3721919A1 | Freeze-drying facility | |
| DE3721611A1 | MECHANICAL VACUUM PUMP WITH A SPRING-LOADED CHECK VALVE | |
| JPS62269033A | Helium leakage detector | |
| DE3705912A1 | HIGH VACUUM PUMP WITH A BELL-SHAPED ROTOR | |
| DE3639512A1 | Vacuum pump system with a Roots pump |