| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 2 | |
| #2 | United Kingdom | 2 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | South Africa | 2 | |
| #5 | Australia | 1 | |
| #6 | Denmark | 1 | |
| #7 | India | 1 | |
| #8 | New Zealand | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Pumps | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Macleod Donald Ian Guy | 11 |
| Publication | Filing date | Title |
|---|---|---|
| NZ218556A | Submersible piston operated well pump: inlet and outlet valves situated on plunger rod | |
| WO8703649A1 | Well pump | |
| ZA8306613B | Hydraulically actuated bore and well pump | |
| GB8305791D0 | Hydraulic pump jack | |
| GB2100362A | Submersible hydraulic bore and well pump |