| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 3 | |
| #2 | Spain | 2 | |
| #3 | Mexico | 2 | |
| #4 | United States | 2 | |
| #5 | South Africa | 2 | |
| #6 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Separating solids |
| # | Name | Total Patents |
|---|---|---|
| #1 | Haight William J | 9 |
| #2 | Haight W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4875999A | Apparatus and method of classifying particles | |
| AU6219686A | Improved process and apparatus separating particles by relative density | |
| AU4310285A | Apparatus and method for classifying particles | |
| US4319995A | Process and apparatus for separating particles by relative density |