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Annegret Haars
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Gottingen, DE
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last 30 patents
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Patent Grant
Method for precipitation of sulphonated lignin from sulfide wastes
Patent number
4,459,228
Issue date
Jul 10, 1984
Gelsellschaft fur Biotechnologische Forschung
Annegret Haars
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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Patent Grant
Process for producing a binder for wood materials
Patent number
4,432,921
Issue date
Feb 21, 1984
Gesellschaft fur Biotechnologische Forschung
Annegret Haars
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...