| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 23 | |
| #2 | United States | 2 | |
| #3 | Zimbabwe | 2 | |
| #4 | Australia | 1 | |
| #5 | Brazil | 1 | |
| #6 | Canada | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | Zambia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Civil engineering | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Nails | |
| #2 | Earth drilling | |
| #3 | Unspecified technologies | |
| #4 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Straughan Clive | 9 |
| #2 | Minnaar Daniel | 9 |
| #3 | Dawe Stephen George | 8 |
| #4 | Brews James Atherton | 6 |
| #5 | Meyer Gert Hendrik | 3 |
| #6 | Stephen George Dawe | 2 |
| #7 | Hugh Somerville Davidson | 2 |
| #8 | James Atherton Brews | 1 |
| #9 | Brews James A | 1 |
| #10 | Glassford John Gilmour | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ZW20687A1 | The removal of belt conveyor pulleys | |
| ZM8887A1 | The removal of belt conveyor pulleys | |
| ZA8708297B | The removal of belt conveyor pulleys | |
| ZA8704049B | A drill steel collar | |
| ZA8702304B | Securing mining picks | |
| ZA8607895B | Mining picks | |
| ZA8606687B | Tamping cartridge | |
| ZA8604248B | Quick-release idler roller attachment mechanism | |
| ZA8602878B | Tamping composition | |
| ZA8600062B | Method of installing a rock bolt | |
| ZA8508795B | An anchor bolt | |
| ZA8505310B | Bearing plate | |
| ZA8505311B | Compartmented container | |
| ZA8410067B | Grouting rod | |
| ZA8406408B | Support bolt | |
| ZA8405122B | Belt scraper blades | |
| ZA8403994B | Rod seals | |
| ZA8308738B | Torque indicating means for nuts on screw-threaded shanks | |
| ZA8307779B | Threaded member | |
| US4638874A | Drill adaptor |