Assignee
INT PAPER CANADA
5 granted patents·93 citations·filing 1974–1979
Top patents by PatentIndex Score
5 records- 0177US4116758AMethod of producing high yield chemimechanical pulpsINT PAPER CANADA·Filed 1977·Granted Sep 26, 1978·24 cites·3 claims
- 0276US4211605AHigh yield chemimechanical pulping processesINT PAPER CANADA·Filed 1978·Granted Jul 8, 1980·23 cites·13 claims
- 0366US4021493AVanillin recovery processINT PAPER CANADA·Filed 1975·Granted May 3, 1977·10 cites·9 claims
- 0465US4013506AMethod and apparatus for automatically and simultaneously controlling solution viscosity and brightness of a pulp during multi-stage bleachingINT PAPER CANADA·Filed 1974·Granted Mar 22, 1977·27 cites·28 claims
- 0557US4238281ASimplified bleaching processINT PAPER CANADA·Filed 1979·Granted Dec 9, 1980·9 cites·21 claims
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