| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 6 | |
| #2 | Canada | 5 | |
| #3 | EPO (European Patent Office) | 5 | |
| #4 | Netherlands | 3 | |
| #5 | United States | 3 | |
| #6 | WIPO (World Intellectual Property Organization) | 3 | |
| #7 | Brazil | 1 | |
| #8 | Norway | 1 | |
| #9 | Poland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Furniture and games | |
| #3 | Mechanical elements | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Grinding or polishing devices | |
| #2 | Domestic washing | |
| #3 | Clutches and brakes | |
| #4 | Scaffolding |
| # | Name | Total Patents |
|---|---|---|
| #1 | Van Vliet Johannes Petrus | 17 |
| #2 | Muller Joop Henk | 16 |
| #3 | Vliet Johannes Petrus Van | 11 |
| #4 | Witters Gilbert Filipe Maria | 8 |
| #5 | Witters Gilbert Felipe Maria | 1 |
| #6 | Witcan N V | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US7377838B1 | Floor treating machine | |
| EP1915232A2 | Floor treating machine with improved rotary drive | |
| EP1754570A1 | Floor treating machine comprising individually driven discs | |
| US2006026781A1 | Floor treating machine comprising individually driven discs | |
| NL1015226C2 | Floor processing machine. | |
| NL1014015C2 | Grinding machine for removing top layer from floor, includes main and auxiliary motors for independently setting rotation speeds for grinding heads and their housing | |
| NL1006141C1 | Grinding machine. |