| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Finland | 3 | |
| #3 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Textiles and paper | |
| #2 | Machine tools | |
| #3 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Paper recycling | |
| #2 | Mixing | |
| #3 | Veneer production | |
| #4 | Presses | |
| #5 | Preliminary treatment of fibres |
| # | Name | Total Patents |
|---|---|---|
| #1 | Andreas Christensen | 2 |
| #2 | Sigurd Norman | 2 |
| #3 | Christiansen Clarence J | 1 |
| #4 | Leif Gloersen | 1 |
| #5 | Harry Coolidge | 1 |
| #6 | Johansson Hjartsater Jacob | 1 |
| #7 | Power Michael F | 1 |
| #8 | Guettler Herbert W | 1 |
| #9 | John Stadler | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3020943A | Barking drum | |
| US2119571A | Chip packer | |
| US2062127A | Strainer for pulp digesters | |
| US1943289A | Digester system | |
| US2007799A | Apparatus for introducing fused chemicals into liquid | |
| US1942685A | Sulphite pulp digester system | |
| US1928791A | Chip duster |