| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 7 | |
| #2 | Australia | 2 | |
| #3 | Canada | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | Poland | 1 | |
| #6 | United States | 1 | |
| #7 | Zambia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ackroyd Gordon William | 6 |
| #2 | Gordon William Ackroyd | 3 |
| #3 | Christie Keith Donald | 3 |
| #4 | Keith Donald Christie | 3 |
| #5 | Ackroyd Gordon W | 2 |
| #6 | Gibson Thomas Emil | 2 |
| #7 | Kapilevitch Boris | 1 |
| #8 | Boris Kapilevitch | 1 |
| #9 | Jan Hendrik Kunneke | 1 |
| #10 | Ackroyd Gordon Wolliam | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AU651424B2 | Pick holder | |
| ZA9108506B | Self-loading haulage machine | |
| ZA9108504B | Vehicle braking system | |
| ZA9105919B | Drive train | |
| US5285866A | Drive train | |
| EP0468779A1 | Drive train | |
| ZA9009209B | Electrical motors | |
| ZA9009208B | Lubrication of electrical motors | |
| ZA9005909B | Pick holder | |
| ZA8907815B | Fireproof door | |
| ZM7882A1 | Controlling the operation of a winch |