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Browse by Category: Main > Paper, Printing & Office Supplies

Class Information
Number: 162/181R
Name: Paper making and fiber liberation >
Description:

Sub-classes under this class:

Class Number	Class Name	Patents
162/1	Processes of chemical liberation, recovery or purification of natural cellulose or fibrous material	27
162/100	Processes and products	147
162/232	Apparatus	32
162/900	Papermaking press felts	261
162/901	Impermeable belts for extended nip press	123
162/902	Woven fabric for papermaking drier section	123
162/903	Paper forming member (e.g., fourdrinier, sheet forming member, etc.)	216
162/904	With specified seam structure of papermaking belt	95
162/DIG.12	Seasoning	7
162/DIG.2	Chip soaking	11
162/DIG.3	Wetting agent	17
162/DIG.4	Pitch control	123
162/DIG.5	Alpha cellulose	3
162/DIG.6	Moisture and basic weight	50
162/DIG.7	Water collectors (e.g., save-alls)	32
162/DIG.8	Chlorine-containing liquid regeneration	45
162/DIG.9	Uses for paper making sludge	43