ClassID:

126339

D21C3/003 - CPC Classification

Classification description:

Pulping cellulose-containing materials with organic compounds

Recent Application in this class:
#1
20260055552
2026-02-26

EXTRACTION OF DELIGNIFIED, CELLULOSE-BASED FIBERS FROM NATURAL PLANT MATERIAL, AND MATERIALS INCORPORATING SUCH FIBERS

#2
20250341054
2025-11-06

EFFICIENT METHODS AND COMPOSITIONS FOR RECOVERY OF PRODUCTS FROM ORGANIC ACID PRETREATMENT OF PLANT MATERIALS

#3
20250341053
2025-11-06

METHOD FOR PRODUCING PULP SOFTENERS USING WASTE COOKING OIL

#4
20250333905
2025-10-30

PROCESS FOR INCREASING DIGESTION EFFICIENCY OF LIGNOCELLULOSIC MATERIAL IN A TREATMENT VESSEL

#5
20250320659
2025-10-16

DIGESTER ADDITIVE FORMULATIONS AND USE THEREOF FOR PULP PRODUCTION

#6
20250215642
2025-07-03

EFFICIENT METHODS AND COMPOSITIONS FOR RECOVERY OF PRODUCTS FROM ORGANIC ACID PRETREATMENT OF PLANT MATERIALS

#7
20250207325
2025-06-26

BIOMASS DELIGNIFICATION

#8
20250146217
2025-05-08

EFFICIENT METHODS AND COMPOSITIONS FOR RECOVERY OF PRODUCTS FROM ORGANIC ACID PRETREATMENT OF PLANT MATERIALS

#9
20250075425
2025-03-06

PROCESSES FOR FRACTIONATION OF BIOMASS

#10
20240318381
2024-09-26

MODIFIED SULFURIC ACID AND USES THEREOF

#11
20240309585
2024-09-19

MODIFIED SULFURIC ACID AND USES THEREOF

#12
20240295073
2024-09-05

MODIFIED SULFURIC ACID AND USES THEREOF

#13
20240263394
2024-08-08

Modified sulfuric acid and uses thereof

#14
20240247438
2024-07-25

APPROACH TO BIOMASS DELIGNIFICATION

#15
20240229354
2024-07-11

Modified sulfuric acid and uses thereof

#16
20240175205
2024-05-30

METHOD FOR DIGESTING LIGNOCELLULOSIC MATERIAL

#17
20240175204
2024-05-30

Foam-Based Manufacturing System and Process

#18
20240084507
2024-03-14

Juncao pulp for spinning and preparation method and use thereof

#19
20230323597
2023-10-12

Method for separating biomass components by ternary system

#20
20230203311
2023-06-29

EVAPORATIVE DEVICES HAVING DELIGNIFIED PLANT MATERIALS, AND SYSTEMS AND METHODS FOR FABRICATION AND USE THEREOF

#21
20230160141
2023-05-25

EXTRACTION OF DELIGNIFIED, CELLULOSE-BASED FIBERS FROM NATURAL PLANT MATERIAL, AND MATERIALS INCORPORATING SUCH FIBERS

#22
20230160140
2023-05-25

PROCESS FOR INCREASING DIGESTION EFFICIENCY OF LIGNOCELLULOSIC MATERIAL IN A TREATMENT VESSEL

#23
20230074870
2023-03-09

Foam-based manufacturing system and process

#24
20230061654
2023-03-02

COOKING ACCELERATOR FOR LIGNOCELLULOSE MATERIALS AND METHOD FOR PRODUCING PULP USING SAME

#25
20230046123
2023-02-16

Process for producing refined cotton with high polymerization degree

#26
20230002971
2023-01-05

METHOD AND PLANT FOR OBTAINING CELLULOSE FIBRES

#27
20220412001
2022-12-29

Temperature-controlled delignification of biomass

#28
20220267956
2022-08-25

Arylsulfonic acid—modified sulfuric acid and uses thereof

#29
20220267955
2022-08-25

Modified sulfuric acid and uses thereof

#30
20220267954
2022-08-25

Modified sulfuric acid and uses thereof

#31
20220267953
2022-08-25

MODIFIED SULFURIC ACID AND USES THEREOF

#32
20220267952
2022-08-25

Modified sulfuric acid and uses thereof

#33
20220267951
2022-08-25

Modified sulfuric acid and uses thereof

#34
20220195664
2022-06-23

Approach to biomass delignification

#35
20220186434
2022-06-16

Combination approach to delignification of biomass under ambient conditions

#36
20220170206
2022-06-02

Approach to biomass delignification

#37
20220049420
2022-02-17

Efficient methods and compositions for recovery of products from organic acid pretreatment of plant materials

#38
20220018065
2022-01-20

METHOD OF PRODUCING HOLOCELLULOSE AND PAPER STRENGTH AGENT, PROCESS FOR THE PRODUCTION OF PAPER, THE PAPER PRODUCED AND USE OF THE PRODUCED PAPER

#39
20210285156
2021-09-16

Method of transforming high consistency pulp fibers into pre-dispersed semi-dry and dry fibrous materials

#40
20210277151
2021-09-09

Processes for producing nanocellulose, and nanocellulose compositions produced therefrom

#41
20210221919
2021-07-22

Nanolignocellulose compositions and processes to produce these compositions

#42
20210207321
2021-07-08

METHOD FOR TREATING DISSOLVING PULP

#43
20210095421
2021-04-01

Multi-step process for the isolation of components from

#44
20210009908
2021-01-14

Lignocellulosic biomass based process for production of lignins and syngas, and electricity production efficient syngas

#45
20210002824
2021-01-07

Low energy production process for producing paper pulp from lignocellulosic biomass

#46
20200208346
2020-07-02

Method for producing densified cellulosic composite material

#47
20200181838
2020-06-11

Method of producing chemical pulp

#48
20200173103
2020-06-04

METHOD FOR PRODUCING ACETATE GRADE DISSOLVING PULP FROM POPLAR RESIDUAL SLABS

#49
20190376236
2019-12-12

Method to convert mechanical pulp derived waste material into value added cellulose products

#50
20190309473
2019-10-10

Methods for the production of pulp and hemicellulose

#51
20190233596
2019-08-01

Low temperature and efficient fractionation of lignocellulosic biomass using recyclable organic solid acids

#52
20190226142
2019-07-25

Method for improved pulping using an environmentally friendly pulping aid

#53
20190153673
2019-05-23

Tobacco-derived nanocellulose material

#54
20190136448
2019-05-09

Method for separating cellulose

#55
20190112757
2019-04-18

Phenols as additives in kraft pulping

#56
20190093285
2019-03-28

Fine cellulose fiber and production method for same

#57
20180327969
2018-11-15

Treatment of lignocellulosic biomass with ionic liquid

#58
20180298113
2018-10-18

NANOLIGNOCELLULOSE COMPOSITIONS AND PROCESSES TO PRODUCE THESE COMPOSITIONS

#59
20180266053
2018-09-20

Tobacco-derived nanocellulose material

#60
20180044853
2018-02-15

STABLE AND HOMOGENOUS ANTHRAQUINONE COMPOSITIONS AND PREPARATIONS THEREOF

#61
20170335514
2017-11-23

Method for controlling the deposition of stickies in pulping and papermaking processes

#62
20170335512
2017-11-23

Process for individualizing trichomes

#63
20170211231
2017-07-27

Methods for Treating Lignocellulosic Material

#64
20170210826
2017-07-27

PROCESSES FOR PRODUCING NANOCELLULOSE, AND NANOCELLULOSE COMPOSITIONS PRODUCED THEREFROM

#65
20170101738
2017-04-13

METHOD FOR PREPARATION OF CELLULOSE NANOCRYSTALS AND NANOFIBRILS

#66
20170029713
2017-02-02

METHODS AND SYSTEMS FOR PROCESSING LIGNIN DURING HYDROTHERMAL DIGESTION OF CELLULOSIC BIOMASS SOLIDS

#67
20160168275
2016-06-16

Production of textile from citrus fruit

#68
20160152736
2016-06-02

Process for the organosolv treatment of lignocellulosic biomass

#69
20160002850
2016-01-07

Biomass process optimisation

#70
20150361616
2015-12-17

PROCESS FOR ISOLATING CELLULOSE FROM CELLULOSIC BIOMASS, ISOLATED CELLULOSE OF TYPE I AND COMPOSITE MATERIALS COMPRISING SAME

#71
20150344819
2015-12-03

WATER CLUSTER-DOMINANT ALKALI SURFACTANT COMPOSITIONS AND THEIR USE

#72
20150344818
2015-12-03

WATER CLUSTER-DOMINANT ALKALI SURFACTANT COMPOSITIONS AND THEIR USE

#73
20150184337
2015-07-02

METHODS FOR REMOVING HEMICELLULOSE

#74
20150139977
2015-05-21

XYLANASES, NUCLEIC ACIDS ENCODING THEM AND METHODS FOR MAKING AND USING THEM

#75
20150041085
2015-02-12

PULP COMPOSITION

#76
20140323716
2014-10-30

Liquefaction of biomass at low pH

#77
20140174680
2014-06-26

PULPING PROCESSES

#78
20140135470
2014-05-15

Lignin conversion process

#79
20140110070
2014-04-24

Method for catalytic oxidation of cellulose and method for making a cellulose product

#80
20140073016
2014-03-13

Treatment of biomass to dissolve lignin with ionic liquid composition

#81
20120264173
2012-10-18

Organic solvent pretreatment of biomass to enhance enzymatic saccharification

#82
20120138546
2012-06-07

High Temperature Lignin Separation Process

#83
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

#84
20110020874
2011-01-27

Simplified method for digestion of cellulosic biomass

#85
20100163018
2010-07-01

Fractionation of lignocellulosic material using ionic liquids

#86
20100159516
2010-06-24

Organic solvent pretreatment of biomass to enhance enzymatic saccharification

#87
20100124772
2010-05-20

Process for producing a sugar solution by combined chemical and enzymatic saccharification of polysaccharide enriched biomass

#88
20090155238
2009-06-18

Xylanases, nucleic acids encoding them and methods for making and using them