Assignee
DEFIBRATOR AB
16 granted patents·263 citations·filing 1975–1981
Top patents by PatentIndex Score
16 records- 0189US4270976AMethod of producing peroxide bleached pulpDEFIBRATOR AB·Filed 1979·Granted Jun 2, 1981·65 cites·7 claims
- 0282US4298425AMethod and apparatus for refining lignocellulose-containing material to produce fiber pulpDEFIBRATOR AB·Filed 1979·Granted Nov 3, 1981·33 cites·7 claims
- 0382US4148439AMethod and device for controlling the energy consumption in a pulp refining systemDEFIBRATOR AB·Filed 1977·Granted Apr 10, 1979·30 cites·2 claims
- 0475US4274602ARotary grinding disc for defibrating apparatusDEFIBRATOR AB·Filed 1979·Granted Jun 23, 1981·14 cites·2 claims
- 0575US4073442AElectrically controlled system for regulating the grinding space in a grinding apparatusDEFIBRATOR AB·Filed 1977·Granted Feb 14, 1978·21 cites·7 claims
- 0667US4355768ARotary grinding disc for defibrating apparatusDEFIBRATOR AB·Filed 1981·Granted Oct 26, 1982·11 cites·2 claims
- 0765US4042125AMethod and apparatus for stacking and feeding blanks to a tiered multi-opening press for the production of pressed boardDEFIBRATOR AB·Filed 1975·Granted Aug 16, 1977·20 cites·8 claims
- 0862US4204689ASealing device for shaftsDEFIBRATOR AB·Filed 1978·Granted May 27, 1980·19 cites·4 claims
- 0961US4030969AMethod of dispersing a bleaching agent into a stream of fibrous cellulosic pulp material in a throttling nozzleDEFIBRATOR AB·Filed 1975·Granted Jun 21, 1977·11 cites·2 claims
- 1059US4220290AConveyor device for feeding lignocellulosic material to a disc-type grinding apparatusDEFIBRATOR AB·Filed 1979·Granted Sep 2, 1980·14 cites·4 claims
- 1149US4355767ADevice in grinding apparatusDEFIBRATOR AB·Filed 1977·Granted Oct 26, 1982·10 cites·1 claims
- 1246US4198302AApparatus for relieving blockage of the pulp discharge passage in a cyclone in a pulping systemDEFIBRATOR AB·Filed 1978·Granted Apr 15, 1980·5 cites·8 claims
- 1342US4017356AApparatus and method for manufacturing wood pulp by grinding wood block materialDEFIBRATOR AB·Filed 1976·Granted Apr 12, 1977·8 cites·7 claims
- 1431US3969184ADigestion odor controlDEFIBRATOR AB·Filed 1975·Granted Jul 13, 1976·2 cites·3 claims
- 1523US4078674AApparatus for manufacture of sheets or board units from cellulose or fibre material or shavingsDEFIBRATOR AB·Filed 1975·Granted Mar 14, 1978·0 cites·5 claims
- 1623US4017246AConveyor plate for wet sheets or dry sheetsDEFIBRATOR AB·Filed 1975·Granted Apr 12, 1977·0 cites·1 claims
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