| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 2 | |
| #2 | Australia | 1 | |
| #3 | Brazil | 1 | |
| #4 | China | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Finland | 1 | |
| #7 | India | 1 | |
| #8 | Mexico | 1 | |
| #9 | New Zealand | 1 | |
| #10 | Russian Federation | 1 | |
| #11 | Zambia | 1 | |
| #12 | Zimbabwe | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Separating solids using liquids |
| # | Name | Total Patents |
|---|---|---|
| #1 | Fletcher John Maurice | 11 |
| #2 | John Maurice Fletcher | 1 |
| #3 | Fletcher Lynn Diana | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ZM6087A1 | Gravitational separation | |
| CN1030880A | Gravitational separation | |
| FI872886A0 | Gravitationsseparation. | |
| ZA8606485B | Apparatus for separation of particulate materials |