| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 4 | |
| #2 | Canada | 3 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | United Kingdom | 3 | |
| #5 | United States | 3 | |
| #6 | Norway | 2 | |
| #7 | Australia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Electrical machinery and energy | |
| #3 | Engines, pumps and turbines | |
| #4 | Measurement | |
| #5 | Audio-visual technology | |
| #6 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Dynamo-electric machines | |
| #3 | Non-positive-displacement pumps | |
| #4 | Geophysics | |
| #5 | Electric motor controls | |
| #6 | Unspecified technologies | |
| #7 | Casings and printed circuits |
| # | Name | Total Patents |
|---|---|---|
| #1 | Spring Gregson William Martin | 19 |
| Publication | Filing date | Title |
|---|---|---|
| GB0300249D0 | Mud pulse communication with alternator speed control | |
| AU2003201989A1 | Communication system for down hole use | |
| WO02091553A1 | Downhole torque-generating and generator combination apparatus | |
| GB0024846D0 | Printed circuit and method of assembling the same | |
| GB9104686D0 | Motor speed controller |