| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 4 | |
| #2 | United States | 2 | |
| #3 | Brazil | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | Spain | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | India | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Dynamo-electric machines | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nel Gert | 9 |
| #2 | Nel Gerhardus | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB8712002D0 | Electrical motors | |
| ZA8607448B | Wire coiling apparatus | |
| ZA858607B | Electrical machines having a quickly releasable stator | |
| ZA8507047B | Bearing heater and demagnetiser | |
| US4564780A | Electrical machine having a quickly releasable stator |