Sunds Defibrator Rauma Oy

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Patents Grantslast 30 patents

Information Patent Grant
Batch process for preparing kraft pulp in a batch digesting process
- Patent number 5,643,410
- Issue date Jul 1, 1997
- Sunds Defibrator Rauma Oy
- Seppo T. Hiljanen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for preparing kraft pulp using black liquor pretreatment re...
- Patent number 5,183,535
- Issue date Feb 2, 1993
- Sunds Defibrator Rauma Oy
- Panu Tikka
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method and equipment for filtration of suspension
- Patent number 5,051,195
- Issue date Sep 24, 1991
- Sunds Defibrator Rauma Oy
- Pertti Haapamaki
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method for screening of defibered chlorine dioxide bleached pulp du...
- Patent number 4,999,085
- Issue date Mar 12, 1991
- Sunds Defibrator Rauma Oy
- Juhani Luntamo
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method and apparatus for thickening a slurry using a compression plate
- Patent number 4,995,988
- Issue date Feb 26, 1991
- Sunds Defibrator Rauma Oy
- Aaro Ahlgren
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

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