| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 5 | |
| #2 | Finland | 2 | |
| #3 | United States | 2 | |
| #4 | United Kingdom | 1 | |
| #5 | Norway | 1 | |
| #6 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Treatment of paper-making materials | |
| #2 | Separation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ahlfors Sten Eskil Einarsson | 8 |
| #2 | Ahlfors S E E | 2 |
| #3 | Ahlfors Sten E E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3933649A | Apparatus for purifying and fractionating particle suspensions | |
| US3939065A | Screening device | |
| GB1374358A | Method of purifying and fractioning particle suspensions and an apparatus for carrying out the method | |
| CA447069A | Wet-treating fibrous matters | |
| CA447070A | Apparatus for wet-treating fibrous matters | |
| CA443891A | Fibrous suspensions straining method | |
| CA451403A | Apparatus for automatic periodic cleaning of straining members |