ClassID:

91269

C07C37/84 - CPC Classification

Classification description:

Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring; Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by crystallisation

Recent Application in this class:
#1
20260035535
2026-02-05

METHOD FOR DEGRADING POLYCARBONATE

#2
20250368594
2025-12-04

COMPOSITIONS AND METHODS TO SEPARATE CANNABINOIDS FROM IMPURITIES BY CRYSTALLIZATION

#3
20250340712
2025-11-06

METHOD FOR PRODUCING BISPHENOL AND METHOD FOR PRODUCING RECYCLED POLYCARBONATE RESIN

#4
20250296904
2025-09-25

CRYSTAL OF 4,4'-BIS(1,1-BIS(4-HYDROXY-3-METHYLPHENYL)ETHYL)BIPHENYL AND METHOD FOR PRODUCING THE SAME

#5
20250152646
2025-05-15

SOLVENTS, METHODS, AND SYSTEMS FOR ISOLATING CANNABINOIDS FROM PLANTS EXTRACTS OR FROM SYNTHETIC PATHWAYS

#6
20250129003
2025-04-24

MONOMER COMPOSITION FOR SYNTHESIZING RECYCLED PLASTIC, PREPARATION METHOD THEREOF, RECYCLED PLASTIC, AND MOLDED PRODUCT USING THE SAME

#7
20250122138
2025-04-17

PRODUCTION PROCESS AND DEVICE FOR SYNTHESIZING BISPHENOL A BY RESIN METHOD

#8
20250043097
2025-02-06

A METHOD OF RECYCLING PLASTIC WASTE COMPRISING PET

#9
20250026777
2025-01-23

COCRYSTALS OF NICOTINAMIDE RIBOSIDE SALTS, CRYSTALLINE FORMS, METHODS OF PREPARATION, AND APPLICATIONS THEREOF

#10
20250011266
2025-01-09

METHODS OF MAKING CANNABIDIVARIN ISOLATE

#11
20240425665
2024-12-26

PYROLYSIS OF POLYCARBONATE-CONTAINING MATERIAL IN ORDER TO RECOVER RAW MATERIALS

#12
20240308944
2024-09-19

METHOD FOR THE MANUFACTURE OF BISPHENOL A

#13
20240279148
2024-08-22

PREPARATION METHOD OF CAROTENOID AGENT

#14
20240190834
2024-06-13

METHODS FOR EXTRACTION, PROCESSING, AND PURIFICATION OF MINOR CANNABINOID COMPOUNDS FROM COMPLEX MIXTURES

#15
20240116839
2024-04-11

PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF ACETOPHENONE

#16
20240109831
2024-04-04

PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF BENZENE

#17
20240082335
2024-03-14

PROCESSES AND SYSTEMS FOR CONVERTING CANNABINOIDS INTO CANNABINOID DERIVATIVES AND ISOLATING THE SAME

#18
20230382944
2023-11-30

NOVEL COCRYSTALS OF DEXAMETHASONE

#19
20230357113
2023-11-09

TAPINAROF POLYMORPHS

#20
20230212100
2023-07-06

Systems and methods for refining cannabidiol

#21
20230036925
2023-02-02

Solvents, methods, and systems for isolating botanical extracts from plants

#22
20230032750
2023-02-02

Processes for converting cannabinoids into cannabinoid derivatives and recovering the same

#23
20230032547
2023-02-02

Processes and systems for converting cannabinoids into cannabinoid derivatives and isolating the same

#24
20220396540
2022-12-15

METHODS TO SEPARATE CANNABINOIDS FROM IMPURITIES BY CRYSTALLIZATION

#25
20220371977
2022-11-24

Isolation and crystallization of cannabinoids without distillation or evaporation of solvents

#26
20220332671
2022-10-20

Methods and systems for crystallizing and isolating individual cannabinoids

#27
20220259124
2022-08-18

PROCESS FOR PREPARING BISPHENOLE A (BPA) IN THE PRESENCE OF HYDROXYACETONE

#28
20220204432
2022-06-30

Honokiol crystal forms, amorphous form and preparation thereof

#29
20220135508
2022-05-05

Pyrogallol[2]resorcin[2]arene

#30
20220089560
2022-03-24

Compositions of Δ10-THC and Δ6a10-THC

#31
20210380514
2021-12-09

Solid compositions of cocrystals of cannabinoids

#32
20210371365
2021-12-02

Process for the preparation of 3,3,4-trimethylcyclohexylidene bisphenol (BP-TMC)

#33
20210363083
2021-11-25

Process for separating a constituent/cannabinoid using a chromatographic resin

#34
20210363082
2021-11-25

Treatment of residual streams from the manufacture of bisphenols

#35
20210101856
2021-04-08

Cannabinoid processing methods and systems

#36
20200399194
2020-12-24

Process for separating a constituent/cannabinoid using a chromatographic resin

#37
20200385326
2020-12-10

Process for THR preparation of natural crystallized thymol from (Jammu Monarda) oil

#38
20200369586
2020-11-26

Cocrystal of 2-[(1R,6R)-6-isopropenyl-3-methylcyclohex-2-en-1-yl]-5-pentylbenzene-l,3-diol

#39
20200361841
2020-11-19

Systems and methods for refining cannabidiol

#40
20200354297
2020-11-12

Methods of Manufacturing Cannabidiol or Cannabidivarin and Intermediates of Manufacturing Cannabidiol or Cannabidivarin

#41
20200206726
2020-07-02

Method for washing ion exchange resin and method for preparing bisphenol A

#42
20200181050
2020-06-11

Method for the production of cannabinoids from types of industrial hemp

#43
20200039909
2020-02-06

Recovering and purifying resveratrol produced by microbial fermentation

#44
20200017431
2020-01-16

Apparatus and method for preparing bisphenol A

#45
20200001201
2020-01-02

Resinous compound crystallization using non-polar solvent sequence

#46
20190382327
2019-12-19

METHOD AND APPARATUS FOR PRODUCING CRYSTALLINE MATERIAL FROM PLANT EXTRACT

#47
20190315670
2019-10-17

Manufacture of bisphenol A

#48
20190308921
2019-10-10

MANUFACTURE OF BISPHENOL A

#49
20190270692
2019-09-05

Method for manufacturing of bisphenol A

#50
20190210947
2019-07-11

Polyhydric phenol compound and method of producing same

#51
20190210946
2019-07-11

Method for preparing high-purity cannabidiol

#52
20190135719
2019-05-09

Method for the continuous manufacture of bisphenol A

#53
20190134532
2019-05-09

Methods of purifying cannabinoids, compositions and kits thereof

#54
20190010110
2019-01-10

Process for separating a constituent/cannabinoid using a chromatographic resin

#55
20190010107
2019-01-10

Process for purification and separation of cannabinoids, from dried hemp and cannabis leaves

#56
20190010106
2019-01-10

Process for purification and separation of cannabinoids, from dried hemp and cannabis leaves

#57
20180362429
2018-12-20

Method for extracting cannabidiol from cannabis

#58
20180312456
2018-11-01

Apparatus and method for preparing bisphenol A

#59
20180258020
2018-09-13

Method of recovering phenol from a BPA production facility and the facility for recovering the same

#60
20180208531
2018-07-26

Fluorene-containing compound and method for making the same

#61
20180179132
2018-06-28

Separation of dichlorophenols

#62
20180066326
2018-03-08

Solid forms of menaquinols

#63
20180022674
2018-01-25

Process for preparation of ospemifene

#64
20180000879
2018-01-04

Methods of purifying cannabinoids, compositions and kits thereof

#65
20170349518
2017-12-07

Crystalline form of cannabidiol

#66
20170305825
2017-10-26

IMPROVED METHOD FOR PREPARING PARA-THYMOL

#67
20170267810
2017-09-21

Crystal polymorphism of inclusion compound and method for producing same, and curable resin composition

#68
20170240494
2017-08-24

Method and device for separating a substance out of a solution

#69
20160369049
2016-12-22

Plastic composition comprising a polycarbonate made from low sulfur bisphenol A, and articles made therefrom

#70
20160304425
2016-10-20

Process for purifying 2,5-dichlorophenol

#71
20160214920
2016-07-28

Methods of purifying cannabinoids, compositions and kits thereof

#72
20160159716
2016-06-09

Bisphenol A preparation apparatus and preparation method

#73
20160115110
2016-04-28

Method of producing purified stilbene compounds

#74
20160060196
2016-03-03

CRYSTALLIZED HYDROQUINONE AND METHODS OF MAKING

#75
20150376099
2015-12-31

New 3,3',5,5'-Tetraisopropyl-4,4'-Diphenol Crystal Form And Preparation Method Thereof

#76
20140221697
2014-08-07

Promoter catalyst system with solvent purification

#77
20140163261
2014-06-12

Method for producing parathymol

#78
20130178660
2013-07-11

Method for producing phenol-BPA adduct crystals

#79
20120283484
2012-11-08

Promoter catalyst system with solvent purification

#80
20120142974
2012-06-07

Crystallizer for producing phenol-BPA adduct crystals

#81
20110319670
2011-12-29

CRYSTALLIZER AND METHOD FOR PRODUCING PHENOL-BPA ADDUCT CRYSTALS

#82
20110201845
2011-08-18

Process for producing triphenylene compound and crystal obtained by the process

#83
20110112333
2011-05-12

BPA process improvement

#84
20110064950
2011-03-17

Method for preparing purified pyrocatechol

#85
20100331579
2010-12-30

Dialkyl phenols

#86
20100191020
2010-07-29

Process for producing triphenylene compound and crystal obtained by the process

#87
20100152495
2010-06-17

Production of highly pure hydroquinone

#88
20100069682
2010-03-18

Preparation of purified hydroquinone

#89
20100010273
2010-01-14

Process for producing bisphenol-A

#90
20090324952
2009-12-31

Form of hydroquinone and production thereof

#91
20090306436
2009-12-10

Preparation of purified hydroquinone and forming of same

#92
20090221858
2009-09-03

Bisphenol-A plant yield enhancement

#93
20090159257
2009-06-25

METHOD AND SYSTEM FOR REGULATING A CONTINUOUS CRYSTALLIZATION PROCESS

#94
20080281130
2008-11-13

PROCESS FOR PRODUCING BISPHENOL A WITH AN EXTENDED SERVICE LIFE IN THE CRYSTALLISATION

#95
20080281129
2008-11-13

BPA process improvement

#96
20080200734
2008-08-21

Crystallization processes for producing bisphenols

#97
20080188693
2008-08-07

Mass separation method of magnolol from cortex radix

#98
20080108851
2008-05-08

Process for the preparation of high-purity bisphenol A

#99
20080091051
2008-04-17

Method for preparing bisphenol A

#100
20070004941
2007-01-04

Process for the preparation of high-purity bisphenol A

#101
20060224025
2006-10-05

Process for recovering an adduct of a bis(4-hydroxyaryl)alkane and a phenolic compound

#102
20060183949
2006-08-17

Process for production of bisphenol A

#103
20060014986
2006-01-19

Process for purifying bisphenol-a

#104
20060011541
2006-01-19

Process for producing bisphenol A

#105
20050222467
2005-10-06

Process for production of bisphenol a

#106
20050215833
2005-09-29

Production of bisphenol-A with reduced sulfur content

#107
20050177007
2005-08-11

Dewatering of circulatory flows in the production of bisphenol A

#108
20050165258
2005-07-28

Method of producing pure 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane

#109
20050159631
2005-07-21

Continuous crystallization process

#110
20050075520
2005-04-07

System and method of producing bisphenol-A (BPA) using two stage crystallization

#111
20050075519
2005-04-07

Process for the recovery of dihydroxybiaryl compounds

#112
20050004405
2005-01-06

Method for producing high purity 1,1-bis(4-hydroxyphenyl)cyclohexanes

#113
17494898
2022-05-31

Methods and systems for crystallizing and isolating individual cannabinoids

#114
16668432
2020-12-08

Cannabidiol isolate production systems and methods

#115
16561242
2020-03-31

Method for preparing resveratrol compound