| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 7 | |
| #2 | Canada | 1 | |
| #3 | Germany | 1 | |
| #4 | United Kingdom | 1 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Civil engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chater Izak | 11 |
| #2 | Brown Allan Henry George | 4 |
| #3 | Brown Allan H G | 2 |
| #4 | Hartley Denis George | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ZA200000659B | A dispenser. | |
| ZA9401915B | Water treatment device | |
| ZA8608932B | Fastener | |
| GB8517818D0 | Expansion shell for borehole anchors | |
| ZA8505299B | Expansion assembly and shell | |
| US4605350A | Expansion shell | |
| ZA8307841B | Fastener | |
| CA1231860A | Expansion shell | |
| ZA8302064B | Method of installing a rock anchor | |
| ZA8205654B | Expansion shell |