| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 3 | |
| #2 | Israel | 3 | |
| #3 | Netherlands | 3 | |
| #4 | South Africa | 3 | |
| #5 | India | 2 | |
| #6 | Belgium | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Working stone | |
| #2 | Grinding or polishing devices | |
| #3 | Accessories for machine tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Fransen Frans | 4 |
| #2 | Baten Jan | 2 |
| #3 | Fransen F | 2 |
| #4 | Les J | 1 |
| #5 | Cooke P | 1 |
| #6 | Lens Jan Baptiste | 1 |
| #7 | Baten J | 1 |
| #8 | Lens Jan B | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ZA7900079B | Working gem stones | |
| GB2018173A | Working gemstones | |
| GB2009642A | Rotary gem stone support | |
| GB1600863A | Gem stone cutting machine |