Defibrator AB
5Patents
0Active
5Granted
24Portfolio score
Filing activity: Jan 20, 1975 → Jul 25, 1979
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4270976A | Method of producing peroxide bleached pulp | Textiles; Paper | 38 | Expired |
| US4042125A | Method and apparatus for stacking and feeding blanks to a tiered multi-opening press for the production of pressed board | Performing Operations; Transporting | 14 | Expired |
| US4017356A | Apparatus and method for manufacturing wood pulp by grinding wood block material | Performing Operations; Transporting | 5 | Expired |
| US4030969A | Method of dispersing a bleaching agent into a stream of fibrous cellulosic pulp material in a throttling nozzle | Textiles; Paper | 5 | Expired |
| US3969184A | Digestion odor control | Textiles; Paper | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.