| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 5 | |
| #2 | Australia | 4 | |
| #3 | EPO (European Patent Office) | 4 | |
| #4 | Canada | 3 | |
| #5 | Zimbabwe | 3 | |
| #6 | African Regional Industrial Property Organization | 1 | |
| #7 | New Zealand | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Shafts | |
| #2 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Venter Dirk Cornelius Stephanu | 10 |
| #2 | Venter Marcus Marcel | 3 |
| #3 | Venter Dirk C S | 3 |
| #4 | Hinks Raymond William | 3 |
| #5 | Peral Jose Luis Hernandez | 2 |
| #6 | Dirk Cornelius Stephanus Vente | 1 |
| #7 | Venter Dirk Conelius Stephanus | 1 |
| #8 | Venter Marcus M | 1 |
| #9 | Venter D C S | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ZA9608717B | Shaft seal | |
| AU4905893A | An adjustable roof support | |
| AP8900143A0 | Mechanical seal | |
| ZA8408020B | Elongate mine support | |
| ZW16784A1 | Elongate mine support | |
| AU2986084A | Yieldable timber roof prop | |
| ZA8404749B | Collapsible elongate mine support | |
| ZW9984A1 | Collapsible elongate mine support | |
| AU2720484A | Timber prop in metal sleeve | |
| ZW6484A1 | Elongate mine prop | |
| ZA8307884B | Pre-stressed mine support |