| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 12 | |
| #2 | Canada | 3 | |
| #3 | Australia | 2 | |
| #4 | France | 2 | |
| #5 | United Kingdom | 2 | |
| #6 | Brazil | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Climate change mitigation in goods production | |
| #2 | Metal production and refining | |
| #3 | Alloys |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tunley Trevor | 10 |
| #2 | Holtum David Alan | 7 |
| #3 | Bell Michael William | 5 |
| #4 | Huberts Robert | 5 |
| #5 | Fowles Robert Gideon | 5 |
| #6 | Tunley Trevor Hugh | 3 |
| #7 | Nicol Michael James | 3 |
| #8 | Colf Jacobus Cornelius Gideon | 2 |
| #9 | Barnett Stephen Charles Crompt | 2 |
| #10 | Slatter Donovan De Lacy | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ZA9701804B | Ferro-nickel smelting. | |
| ZA9608301B | Ilmenite upgrading | |
| ZA9600607B | Briquette binding | |
| ZA9507432B | Mine shaft signalling system | |
| ZA9407430B | Hindered settling classifier | |
| ZA8907731B | Improved treatment of mine effluents |