| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 5 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | Brazil | 1 | |
| #4 | Canada | 1 | |
| #5 | China | 1 | |
| #6 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Machine tools | |
| #5 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Rotary-pistons | |
| #2 | Unspecified technologies | |
| #3 | Rotary pistons | |
| #4 | Springs | |
| #5 | Gearing | |
| #6 | Railway systems | |
| #7 | Multi-purpose tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kaechele Bruno | 7 |
| #2 | Kächele Bruno | 3 |
| #3 | Kachele Bruno | 1 |
| #4 | Burkhardt Georg | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN111670291A | Stator for eccentric screw machine | |
| DE10338632A1 | Eccentric screw pump with erosion-resistant rotor | |
| WO0129423A1 | Eccentric screw pump with fully lined stator |