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Josef S. Gratzl
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Cary, NC, US
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last 30 patents
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Patent Grant
Two stage process for the oxygen delignification of lignocellulosic...
Patent number
5,011,572
Issue date
Apr 30, 1991
FMC Corporation
V. R. Parthasarathy
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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Patent Grant
Process for the delignification of cellulosic substances by pretrea...
Patent number
4,826,567
Issue date
May 2, 1989
Interox (Societe Anonyme)
Josef S. Gratzl
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for delignification of cellulosic substances by pretreating...
Patent number
4,826,568
Issue date
May 2, 1989
Interox (Societe Anonyme)
Josef S. Gratzl
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE