D21C 3/26

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Showing 1 to 20 of 132 results

Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9725849 Method for pretreating cellulose pulpMar 09, 16Aug 08, 17UPM-KYMMENE CORPORATION
9683329 Methods of producing a paper productFeb 24, 16Jun 20, 17THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK
9631317 Method for displacement in batch digestersNov 25, 15Apr 25, 17VALMET AB
9617686 Use of surfactant to treat pulp and improve the incorporation of kraft pulp into fiber for the production of viscose and other secondary fiber productsApr 05, 13Apr 11, 17GP Cellulose GmbH
9580864 Kraft cooking method using polysulfide cooking liquorOct 03, 16Feb 28, 17VALMET AB
9574302 Method and system for efficient production of dissolving pulp in a kraft mill producing paper grade pulp with a continuous type digesterJan 29, 15Feb 21, 17RGE PTE LTD
9556557 Processes for producing cellulose pulp and pulp-derived products from lignocellulosic biomassApr 14, 16Jan 31, 17API INTELLECTUAL PROPERTY HOLDINGS, LLC
9399835 Method of manufacturing pulp for corrugated mediumJan 09, 15Jul 26, 16PACKAGING CORPORATION OF AMERICA
9347176 Processes for producing cellulose pulp, sugars, and co-products from lignocellulosic biomassOct 02, 13May 24, 16API INTELLECTUAL PROPERTY HOLDINGS, LLC
9260818 Single vessel reactor system for hydrolysis and digestion of wood chips with chemical enhanced wash methodMay 05, 08Feb 16, 16ANDRITZ INC.
9194080 Two vessel reactor system and method for hydrolysis and digestion of wood chips with chemical enhanced wash methodMay 15, 14Nov 24, 15ANDRITZ INC.
9115468 Chemical treatment of lignocellulosic fiber bundle material, and methods and systems relating theretoSep 27, 13Aug 25, 15ANDRITZ INC.
9056893 Method and apparatus for treatment of biomass substratesJun 21, 13Jun 16, 15SUGANIT SYSTEMS, INC.
8961740 Method of manufacturing pulp for corrugated mediumJun 10, 11Feb 24, 15PACKAGING CORPORATION OF AMERICA
8951388 Method and system for efficient production of dissolving pulp in a kraft mill producing paper grade pulp with a continuous type digesterApr 06, 12Feb 10, 15RGE PTE LTD
8916023 Vapor phase hydrolysis vessel and methods related theretoFeb 27, 12Dec 23, 14ANDRITZ INC.
8888954 Feeding system having pumps in parallel for a continuous digesterFeb 13, 14Nov 18, 14VALMET AB
8877007 System and method for reclaiming rejects in sulfite pulpingAug 21, 13Nov 04, 14UNIVERSITY OF NEW BRUNSWICK
8691049 Method for an energy efficient production of cellulose pulp in a continuous digesterNov 05, 07Apr 08, 14VALMET AB
8673112 Method and device for thermal hydrolysis and steam explosion of biomassJul 12, 10Mar 18, 14CAMBI TECHNOLOGY AS

Showing 1 to 20 of 132 results