| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 4 | |
| #2 | Canada | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Australia | 1 | |
| #5 | Belgium | 1 | |
| #6 | Germany | 1 | |
| #7 | France | 1 | |
| #8 | India | 1 | |
| #9 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Separating solids | |
| #3 | Separating solids using liquids | |
| #4 | Water treatment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Parnaby Derek | 11 |
| #2 | Parnaby D | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0100132A2 | Dewatering and compacting screen | |
| EP0072590A2 | Vibrating dewatering screen for an apparatus for recovery of particulate matter from suspension | |
| ZA8205452B | Dense medium barrel | |
| ZA8205453B | 6/30 coal washer | |
| BE891668Q | Coal washing installation | |
| DE2637173A1 | SAND FILTER DEVICE |