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Gerhard Keunecke
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Pulheim, DE
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last 30 patents
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Patent Grant
Process for the recovery of cellulose carbamate
Patent number
6,242,595
Issue date
Jun 5, 2001
Lurgi Zimmer Aktiengesellschaft
Gerhard Keunecke
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for modified manufacture of cellulose carbamate
Patent number
5,906,926
Issue date
May 25, 1999
Zimmer Aktiengesellschaft
Gerhard Keunecke
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Production of cellulose carbamate with improved solubility properties
Patent number
5,831,076
Issue date
Nov 3, 1998
Zimmer Aktiengesellschaft
Gerhard Keunecke
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of cellulose carbamate
Patent number
5,378,827
Issue date
Jan 3, 1995
Zimmer Aktiengesellschaft
Gerhard Keunecke
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...