Patent classifications
D
TEXTILES; PAPER
Load children
D21
PAPER-MAKING; PRODUCTION OF CELLULOSE
Load children
D21C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
Load children
9/00
After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters; ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
Load children Filter patents View analytics View as hierarchy