| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 8 | |
| #2 | United States | 3 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Civil engineering | |
| #3 | Machine tools | |
| #4 | Chemical engineering | |
| #5 | Basic materials chemistry | |
| #6 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Alloys | |
| #3 | Grinding tools | |
| #4 | Working metallic powder | |
| #5 | Chemical or physical processes | |
| #6 | Mining | |
| #7 | Percussive tools | |
| #8 | Building materials | |
| #9 | Materials for miscellaneous applications | |
| #10 | Working stone |
| # | Name | Total Patents |
|---|---|---|
| #1 | Jonker Cornelis Roelof | 5 |
| #2 | Can Nedret | 5 |
| #3 | Bowes David Christian | 3 |
| #4 | Barry John James | 2 |
| #5 | Shabalala Thembinkosi | 2 |
| #6 | Fries Robert | 2 |
| #7 | Nilen Roger William Nigel | 1 |
| #8 | Davies Geoffrey John | 1 |
| #9 | Nzama Mhlonishwa Cyprian | 1 |
| #10 | Adia Moosa Mahomed | 1 |