| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 2 | |
| #2 | United Kingdom | 2 | |
| #3 | United States | 2 | |
| #4 | South Africa | 2 | |
| #5 | Austria | 1 | |
| #6 | Australia | 1 | |
| #7 | Canada | 1 | |
| #8 | Switzerland | 1 | |
| #9 | EPO (European Patent Office) | 1 | |
| #10 | Spain | 1 | |
| #11 | Japan | 1 | |
| #12 | Malawi | 1 | |
| #13 | Zambia | 1 | |
| #14 | Zimbabwe | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Rotary-pistons | |
| #2 | Unspecified technologies | |
| #3 | Clutches and brakes | |
| #4 | Earth drilling | |
| #5 | Rotary pistons |
| # | Name | Total Patents |
|---|---|---|
| #1 | Payne Stanley Ashbourne Eaton | 5 |
| #2 | Taylor Alan | 3 |
| #3 | Payne Stanley A E | 2 |
| #4 | Alan Taylor | 2 |
| #5 | Eaton Payne Stanley Ashbourne | 1 |
| #6 | Staney Ashbourne Eaton Payne | 1 |
| #7 | Sutanrei Atsushiyuboon Iiton P | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ZA8501031B | Flexible drive shaft | |
| ZM5183A1 | Helical gear pump | |
| ZW16083A1 | Helical gear pump | |
| ZA8303759B | Healical gear pump | |
| AU4484979A | Shaft coupling | |
| GB972796A | Improvements in or relating to helical screw thread pumps | |
| US3168049A | Helical gear pumps | |
| GB1002642A | Improvements in helical screw pumps | |
| CA711496A | Helical gear pumps |