| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 11 | |
| #2 | Zimbabwe | 2 | |
| #3 | United Kingdom | 1 | |
| #4 | Zambia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Basic materials chemistry | |
| #3 | Environmental technology | |
| #4 | Civil engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Frederick Lees | 7 |
| #2 | Lees Frederick | 6 |
| #3 | Minnaar Daniel | 4 |
| #4 | Daniel Minnaar | 4 |
| #5 | Dawe Stephen George | 2 |
| #6 | Stephen George Dawe | 2 |
| #7 | Meyer Gert Hendrik | 2 |
| #8 | Gert Hendrik Meyer | 2 |
| #9 | Dawe Steven George | 1 |
| #10 | Webber William Colin John | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ZA9305328B | Rockface anchorage | |
| ZA9301131B | Coating composition. | |
| ZA8906057B | Rock bolt | |
| ZA8807504B | Rockbolt bonding medium and method | |
| ZA8806124B | Fast set cementitious grouting material | |
| ZA8806123B | Medium set cementitious grouting material | |
| ZM2388A1 | Setting composition | |
| ZW4088A1 | Setting composition(protection of mine galleries) | |
| ZA8802627B | Setting composition | |
| ZA8802276B | Rockface anchorage | |
| ZW2488A1 | Hydraulic setting compositions | |
| ZA8801949B | Hydraulic setting compositions | |
| ZA8705213B | Rock bolt | |
| ZA8705214B | Rock bolt |