ClassID:

126356

D21C3/22 - CPC Classification

Classification description:

Pulping cellulose-containing materials Other features of pulping processes

Sub-classes:
Recent Application in this class:
#1
20240318381
2024-09-26

MODIFIED SULFURIC ACID AND USES THEREOF

#2
20240295073
2024-09-05

MODIFIED SULFURIC ACID AND USES THEREOF

#3
20240229354
2024-07-11

Modified sulfuric acid and uses thereof

#4
20240226841
2024-07-11

Process and System for Producing Pulp, Energy, and Bioderivatives from Plant-Based and Recycled Materials

#5
20240141587
2024-05-02

PROCESSES, METHODS, AND SYSTEMS FOR CHEMO-MECHANICAL CELLULAR EXPLOSION AND SOLID AND LIQUID PRODUCTS MADE BY THE SAME

#6
20240131489
2024-04-25

Process and System for Producing Pulp, Energy, and Bioderivatives from Plant-Based and Recycled Materials

#7
20230265611
2023-08-24

A HIGH YIELD COOKING METHOD

#8
20230124761
2023-04-20

METHODS AND SYSTEMS FOR PROCESSING MIXED TEXTILE FEEDSTOCK, ISOLATING CONSTITUENT MOLECULES, AND REGENERATING CELLULOSIC AND POLYESTER FIBERS

#9
20230099096
2023-03-30

Processes, methods, and systems for chemo-mechanical cellular explosion and solid and liquid products made by the same

#10
20230081586
2023-03-16

ADJUSTING A HIGH PRESSURE FEEDER BASED ON FLUID LEAKAGE

#11
20220403603
2022-12-22

PACKING CONTAINER USING COCONUT BY-PRODUCT, GRAIN BY-PRODUCT OR COFFEE BY-PRODUCT AND METHOD FOR PRODUCING SAME

#12
20220267954
2022-08-25

Modified sulfuric acid and uses thereof

#13
20220267952
2022-08-25

Modified sulfuric acid and uses thereof

#14
20210340350
2021-11-04

Methods and systems for processing mixed textile feedstock, isolating constituent molecules, and regenerating cellulosic and polyester fibers

#15
20210207320
2021-07-08

Lignocellulosic composites prepared with aqueous alkaline and urea solutions in cold temperatures systems

#16
20200390108
2020-12-17

Processes, methods, and systems for chemo-mechanical cellular explosion and solid and liquid products made by the same

#17
20200188872
2020-06-18

Process and system for producing pulp, energy, and bioderivatives from plant-based and recycled materials

#18
20190309473
2019-10-10

Methods for the production of pulp and hemicellulose

#19
20190292725
2019-09-26

Method and a system for production of high molecular weight lignin

#20
20190255506
2019-08-22

Process and system for producing pulp, energy, and bioderivatives from plant-based and recycled materials

#21
20190119851
2019-04-25

Lignocellulosic composites prepared with aqueous alkaline and urea solutions in cold temperatures systems and methods

#22
20180355447
2018-12-13

Production of fermentable sugars and lignin from biomass using supercritical fluids

#23
20180258450
2018-09-13

FRACTIONATION OF LIGNOCELLULOSIC BIOMASS FOR CELLULOSIC ETHANOL AND CHEMICAL PRODUCTION

#24
20180215893
2018-08-02

Methods and systems for processing mixed textile feedstock, isolating constituent molecules, and regenerating cellulosic and polyester fibers

#25
20180186634
2018-07-05

Oxidative method

#26
20180179369
2018-06-28

THERMOPLASTIC RESIN COMPOSITION AND METHOD FOR PRODUCING THERMOPLASTIC RESIN COMPOSITION

#27
20180119345
2018-05-03

Process for producing a pulp

#28
20180071706
2018-03-15

Process and system for producing pulp, energy, and bioderivatives from plant-based and recycled materials

#29
20170204563
2017-07-20

PROCESSES FOR PRODUCING CELLULOSE PULP AND PULP-DERIVED PRODUCTS FROM LIGNOCELLULOSIC BIOMASS

#30
20170009354
2017-01-12

METHOD AND COMPOSITION FOR REDUCING SILICA BASED EVAPORATOR SCALING

#31
20160326203
2016-11-10

Method for extracting lignin

#32
20160251682
2016-09-01

FRACTIONATION OF LIGNOCELLULOSIC BIOMASS FOR CELLULOSIC ETHANOL AND CHEMICAL PRODUCTION

#33
20160244852
2016-08-25

Production of fermentable sugars and lignin from biomass using supercritical fluids

#34
20160222586
2016-08-04

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

#35
20160215449
2016-07-28

Cross-linked glycerol based polymers as digestion aids for improving wood pulping processes

#36
20140323714
2014-10-30

Method and a system for manufacturing cellulose material

#37
20140106412
2014-04-17

Screw compression process for the conversion of lignocellulosic suspensions containing a high proportion of dry material

#38
20130296545
2013-11-07

PROCESS FOR PRODUCING A PULP

#39
20130248127
2013-09-26

METHOD AND ARRANGEMENT FOR MEASURING AND CONTROLLING CHIP AND/OR LIQUID LEVEL

#40
20130239954
2013-09-19

Production of fermentable sugars and lignin from biomass using supercritical fluids

#41
20130236953
2013-09-12

Method and apparatus for lignocellulose pretreatment using a super-cellulose-solvent and highly volatile solvents

#42
20130139981
2013-06-06

CROSS-LINKED GLYCEROL BASED POLYMERS AS DIGESTION AIDS FOR IMPROVING WOOD PULPING PROCESSES

#43
20130105097
2013-05-02

Method of processing chemical pulp

#44
20120325421
2012-12-27

Circular utilization method in pulping and papermaking processes with straw

#45
20120291774
2012-11-22

Production of fermentable sugars and lignin from biomass using supercritical fluids

#46
20120041186
2012-02-16

System and method for preextraction of hemicellulose through using a continuous prehydrolysis and steam explosion pretreatment process

#47
20120028325
2012-02-02

Flow-through biological conversion of lignocellulosic biomass

#48
20110287502
2011-11-24

Methods and apparatus for processing cellulosic biomass

#49
20110105737
2011-05-05

METHOD FOR PRETREATING PLANT STARTING MATERIAL FOR THE PRODUCTION, FROM SACCHARIFEROUS AND LIGNOCELLULOSIC RESOURCES, OF BIOETHANOL AND OF SUGAR, AND PLANT

#50
20110073264
2011-03-31

Kraft-Pulping of Hot Water Extracted Woodchips

#51
20110065910
2011-03-17

Carbohydrates

#52
20110008850
2011-01-13

Process for the conversion of lignocellulosic solutions containing a high proportion of dry material

#53
20100287826
2010-11-18

System and method of preparing pre-treated biorefinery feedstock from raw and recycled waste cellulosic biomass

#54
20100175839
2010-07-15

PROCESS FOR ADJUSTING THE PH OF A CELLULOSIC PULP, PRODUCTION OF PULP OR PAPER FROM CELLULOSIC PULP AND USE OF (BI)CARBONATE REMOVAL FOR REDUCING THE CONSUMPTION OF ACID

#55
20100132897
2010-06-03

Method and arrangement for continuous cooking

#56
20100012283
2010-01-21

Method to use heat energy from black liquor

#57
20090312537
2009-12-17

CARBOHYDRATES

#58
20090312536
2009-12-17

Process for producing a pulp

#59
20090288793
2009-11-26

Method and device for the continuous cooking of pulp

#60
20090229599
2009-09-17

Method and apparatus for lignocellulose pretreatment using a super-cellulose-solvent and highly volatile solvents

#61
20090221814
2009-09-03

System and method for preextraction of hemicellulose through using a continuous prehydrolysis and steam explosion pretreatment process

#62
20090143573
2009-06-04

Reactor pump for catalyzed hydrolytic splitting of cellulose

#63
20090095430
2009-04-16

Treatment vessel for straw or other light bulky material

#64
20090093028
2009-04-09

APPARATUS AND METHODS FOR TREATING BIOMASS

#65
20080314534
2008-12-25

Method and system for direct contact of hot liquor with wood chips in transfer circulation

#66
20080210392
2008-09-04

METHOD FOR PRODUCING CELLULOSE PULP IN A CONTINUOUS DIGESTER IN AN ENERGY-EFFICIENT MANNER

#67
20080202712
2008-08-28

Method and device for the continuous cooking of pulp

#68
20070272377
2007-11-29

Fully Closed, Zero Discharge, Clean Oxidizing Pulping Technology and Process

#69
20070119557
2007-05-31

Method and system for energy savings in TMP by high temperature LC/MC refining of pulp

#70
20060231791
2006-10-19

Cooking aid for improving the removal of extractives in pulp production, its production and use

#71
20060207734
2006-09-21

Chemical oxidation for cellulose separation with a hypochlorite and peroxide mixture

#72
20060196621
2006-09-07

Virtual hand sheet method and system for estimating paper properties

#73
20060151135
2006-07-13

Method to determine pulping yield

#74
20050252625
2005-11-17

Process for the manufacturing of cellulose pulp

#75
20050194111
2005-09-08

Methods to enhance pulp bleaching and delignification

#76
20050103454
2005-05-19

Pretreatment of chips with white liquor prior to a treatment with black liquor