| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 3 | |
| #2 | Sweden | 3 | |
| #3 | Germany | 2 | |
| #4 | France | 2 | |
| #5 | Australia | 1 | |
| #6 | Brazil | 1 | |
| #7 | Czechoslovakia | 1 | |
| #8 | Italy | 1 | |
| #9 | Japan | 1 | |
| #10 | United States | 1 | |
| #11 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Separating solids | |
| #2 | Unspecified technologies | |
| #3 | Separating solids using liquids | |
| #4 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Cornford A | 2 |
| #2 | Corrigan Patrick | 2 |
| #3 | Fitton J T | 1 |
| #4 | Cornford Arthur Selwyn | 1 |
| #5 | Fitton John Talbot | 1 |
| #6 | Cornford A S | 1 |
| #7 | Corrigan P | 1 |
| #8 | Patoritsuku Korigan | 1 |
| #9 | Corpigan Patrick | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4176055A | Rotary air classifier | |
| GB1577325A | Rotary air classifier | |
| GB1587636A | Method and apparatus for sorting waste material | |
| GB1421354A | Journal bearings |