D21C3/08 - CPC Classification Index

ClassID:

126349 ⎘

D21C3/08 - CPC Classification

Classification description:

Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites calcium bisulfite

Recent Application in this class:

20160362353

2016-12-15

INTEGRATED PROCESS FOR PRODUCING CELLULOSIC PULP AND POLYOLS STREAM

20160222586

2016-08-04

Processes for producing cellulose pulp and pulp-derived products from lignocellulosic biomass

20140096922

2014-04-10

Processes for producing cellulose pulp, sugars, and co-products from lignocellulosic biomass