D21C

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Description

PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR

Subclasses

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Subclass Title
1/00 Pretreatment of the finely-divided materials before digesting (of waste paper D21C 5/02)
1/02 Pretreatment of the finely-divided materials before digesting (of waste paper D21C 5/02) with water or steam
1/04 Pretreatment of the finely-divided materials before digesting (of waste paper D21C 5/02) with acid reacting compounds
1/06 Pretreatment of the finely-divided materials before digesting (of waste paper D21C 5/02) with alkaline reacting compounds
1/08 Pretreatment of the finely-divided materials before digesting (of waste paper D21C 5/02) with oxygen-generating compounds

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Recent Patents

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Recent Publications

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Publication #TitleFiling DatePub DatePatent Owner
2020/0024,801 PROCESS FOR TREATING DREGS, TREATED DREGS, USE THEREOF, PROCESS FOR VULCANIZING RUBBER, AND VULCANIZED RUBBER Sep 27, 17 Jan 23, 20 , Not available
2020/0023,627 A METHOD FOR THE PRODUCTION OF A COATED PAPER, PAPERBOARD OR FILM AND A COATED PAPER, PAPERBOARD OR FILM Dec 21, 17 Jan 23, 20 , Stora Enso Oyj
2020/0025,373 APPARATUS AND METHOD FOR CLEANING SMELT SPOUTS AND SMELT DISCHARGE OPENINGS OF A CHEMICALS RECOVERY FURNACE OR BOILER Feb 06, 18 Jan 23, 20 , Mats Bertilsson Förvaltning AB
2020/0022,537 SOFT SANITARY TISSUE PAPER WEB PRODUCTS COMPRISING NANO-FILAMENTS Sep 30, 19 Jan 23, 20 , Not available
2020/0022,538 ABSORBENT TOWEL PAPER WEB PRODUCTS COMPRISING NANO-FILAMENTS Sep 30, 19 Jan 23, 20 , Not available
2020/0024,802 HEAT TRANSFER TUBE AND METHOD FOR MANUFACTURING A HEAT TRANSFER TUBE Feb 02, 18 Jan 23, 20 , VALMET AB
2020/0024,622 PROCESSING BIOMASS Sep 12, 19 Jan 23, 20 , Not available
2020/0011,012 Method for producing reactive lignin Dec 21, 17 Jan 09, 20 , Not available
2020/0011,011 Steam Saving Device Nov 30, 16 Jan 09, 20 , Clariant International Ltd.
2020/0002,778 PROCESS FOR RECOVERING HIGHER SUGAR FROM BIOMASS Jun 25, 19 Jan 02, 20 , Indian Oil Corporation Limited; Council of Scientific & Industrial Research Department of Biotechnology;
2020/0002,887 Bleaching Trichomes to Remove Proteins Jun 26, 19 Jan 02, 20 , The Procter & Gamble Company
2020/0002,891 CROSSLINKED CELLULOSE AS PRECURSOR IN PRODUCTION OF HIGH-GRADE CELLULOSE DERIVATIVES AND RELATED TECHNOLOGY Sep 13, 19 Jan 02, 20 , International Paper Company
2020/0003,410 BOILER SYSTEM CONTROLLING FUEL TO A FURNACE BASED ON TEMPERATURE OF A STRUCTURE IN A SUPERHEATER SECTION Sep 12, 19 Jan 02, 20 , INTEGRATED TEST & MEASUREMENT
2020/0002,888 Pulping Liquors and Uses Thereof Sep 03, 19 Jan 02, 20 , Not available
2020/0002,886 Enzymatic and Acid Methods for Individualizing Trichomes Jun 26, 19 Jan 02, 20 , The Procter & Gamble Company

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Patents Issued To Date - By Filing Year

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