| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 6 | |
| #2 | Australia | 2 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | China | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Control |
| # | Technology | |
|---|---|---|
| #1 | Bolts for doors or windows | |
| #2 | Locks | |
| #3 | Registering devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Risi Bryan Michael | 12 |
| #2 | Risi Philip Edward Lawrence | 3 |
| #3 | Risi | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN107429522A | Actuating assembly for latch system | |
| ZA200307280B | A locking mechanism. | |
| ZA200304829B | A locking mechanism. | |
| WO0242588A1 | A locking mechanism | |
| ZA9810269B | Lightning arrestors | |
| ZA9809953B | Communication | |
| ZA9609553B | Wire gauging device | |
| ZA9408037B | A protection device |