ClassID:

91261

C07C37/685 - 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 Processes comprising at least two steps in series

Recent Application in this class:
#1
20250303322
2025-10-02

METHODS FOR THE PRODUCTION OF CANNABINOID COMPOSITIONS

#2
20250296905
2025-09-25

CARDANOL-BASED BISPHENOL, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

#3
20250197330
2025-06-19

BISPHENOL A PREPARATION PROCESS AND DEVICE THEREOF

#4
20250122138
2025-04-17

PRODUCTION PROCESS AND DEVICE FOR SYNTHESIZING BISPHENOL A BY RESIN METHOD

#5
20250109087
2025-04-03

FULL SPECTRUM HEMP OIL COMPOSITIONS

#6
20240025830
2024-01-25

PROCESS CONFIGURATION FOR A SINGLE PHENOL PURIFICATION TRAIN FOR PRODUCTION OF PHENOL AND BISPHENOL-A IN AN INTEGRATED PROCESS

#7
20240018079
2024-01-18

METHOD FOR PURIFYING CANNABINOID COMPOUNDS

#8
20230391702
2023-12-07

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

#9
20230383090
2023-11-30

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

#10
20230382837
2023-11-30

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

#11
20230322653
2023-10-12

BISPHENOL PRODUCTION METHOD , RECYCLED POLYCARBONATE RESIN PRODUCTION METHOD, CARBON DIOXIDE PRODUCTION METHOD, CARBONIC ACID DIESTER PRODUCTION METHOD, EPOXY RESIN PRODUCTION METHOD, AND EPOXY RESIN CURED PRODUCT PRODUCTION METHOD

#12
20230295067
2023-09-21

METHODS FOR OBTAINING COMPOUNDS FROM A PLANT OR FUNGUS MATERIAL, RESPECTIVE COMPOSITIONS, AND USES THEREOF

#13
20230286891
2023-09-14

Chloride salt eliminator for glycol in natural gas dehydration

#14
20230265064
2023-08-24

METHOD FOR PRODUCING A PURIFIED CANNABINOID EXTRACT, AND A PURIFIED CANNABINOID EXTRACT OBTAINED THEREFROM

#15
20230212100
2023-07-06

Systems and methods for refining cannabidiol

#16
20230202961
2023-06-29

Processes for purification, recovery, and conversion of chlorophenol salts and preparation and recovery of products prepared therefrom

#17
20230159420
2023-05-25

Manufacturing and purification technology for high purity Propofol

#18
20230100363
2023-03-30

MOLECULARLY IMPRINTED POLYMERS FOR EXTRACTION OF CANNABINOIDS AND USES THEREOF

#19
20230080791
2023-03-16

Device and method for extraction of pure compounds

#20
20220363658
2022-11-17

METHOD FOR SELECTIVE RECOVERY OF HYDROPHOBIC COMPOUNDS

#21
20220315512
2022-10-06

METHOD FOR SIMULTANEOUSLY SEPARATING CANNABIDIVARIN AND CANNABIGEROL

#22
20220177666
2022-06-09

MOLECULARLY IMPRINTED POLYMERS FOR EXTRACTION OF CANNABINOIDS AND USES THEREOF

#23
20220144737
2022-05-12

SYNTHETIC CANNABIDIOL COMPOSITIONS AND METHODS OF MAKING THE SAME

#24
20220127213
2022-04-28

METHOD FOR SELECTIVE SEPARATION, ISOLATION AND RECOVERY OF CANNABIDIOL AND CANNABIDIOL-LIKE MEROTERPENE ACIDS FROM COMPLEX MATRICES

#25
20220112147
2022-04-14

Methods for obtaining compounds from a plant or fungus material, respective compositions, and uses thereof

#26
20220098135
2022-03-31

BISPHENOL COMPOSITION AND POLYCARBONATE RESIN

#27
20220041534
2022-02-10

Cumene-phenol complex with thermal oxidation system

#28
20210403641
2021-12-30

Bisphenol composition and polycarbonate resin

#29
20210371365
2021-12-02

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

#30
20210363083
2021-11-25

Process for separating a constituent/cannabinoid using a chromatographic resin

#31
20210309585
2021-10-07

Method for enantiomeric enrichment

#32
20210276936
2021-09-09

Synthesis of Cannabigerol

#33
20210238117
2021-08-05

Processes for solvent extraction of cannabinoids, terpenes and flavonoids from biomass

#34
20210214331
2021-07-15

EQUIPMENT AND METHOD FOR CONTINUOUSLY PROCESSING PLANT MATERIAL

#35
20210214330
2021-07-15

EQUIPMENT AND METHOD FOR CONTINUOUSLY PROCESSING PLANT MATERIAL

#36
20210163395
2021-06-03

Processes for purification, recovery, and conversion of chlorophenol salts and preparation and recovery of products prepared therefrom

#37
20210162318
2021-06-03

System for filtering organic compounds

#38
20210101856
2021-04-08

Cannabinoid processing methods and systems

#39
20210053899
2021-02-25

Method for separating essential oils from biomass

#40
20200399194
2020-12-24

Process for separating a constituent/cannabinoid using a chromatographic resin

#41
20200392059
2020-12-17

Mobile Crop Processing System and Method

#42
20200361841
2020-11-19

Systems and methods for refining cannabidiol

#43
20200308500
2020-10-01

Hydrothermal liquefaction of lignocellulosic biomass to bio-oils with controlled molecular weights

#44
20200308133
2020-10-01

Equipment and method for continuously processing plant material

#45
20200306665
2020-10-01

System and method for filtering organic compounds

#46
20200246722
2020-08-06

METHOD AND APPARATUS FOR EXTRACTING BOTANICAL OILS

#47
20200222830
2020-07-16

Continuous extraction of natural products from plants apparatus and methods

#48
20200199056
2020-06-25

Synthetic cannabidiol compositions and methods of making the same

#49
20200190004
2020-06-18

Bisphenol composition containing aromatic alcohol sulfonate and method for producing same, polycarbonate resin and method for producing same, and bisphenol production method

#50
20200190003
2020-06-18

Bisphenol composition and method for producing same, and polycarbonate resin and method for producing same

#51
20200190002
2020-06-18

Processes for solvent extraction of cannabinoids, terpenes and flavonoids from biomass

#52
20200115306
2020-04-16

Synthesis of cannabigerol

#53
20200079751
2020-03-12

Method for extracting compositions from plants

#54
20200039907
2020-02-06

Novel method for extraction of Oxyresveratrol from Artocarpus hirsutus

#55
20200017778
2020-01-16

Process for selectively recovering a phenolic compound from feedstock comprising bio-crude and/or bio-oil

#56
20200017431
2020-01-16

Apparatus and method for preparing bisphenol A

#57
20190322612
2019-10-24

Processes for purification, recovery, and conversion of chlorophenol salts and preparation and recovery of products prepared therefrom

#58
20190322606
2019-10-24

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

#59
20190314739
2019-10-17

Extraction of compounds from cannabis

#60
20190241536
2019-08-08

Method for extracting compositions from plants

#61
20190151771
2019-05-23

Method and apparatus for extracting botanical oils

#62
20190134122
2019-05-09

Cultivation, processing, and synthesis of cannabidiols

#63
20190010110
2019-01-10

Process for separating a constituent/cannabinoid using a chromatographic resin

#64
20190010107
2019-01-10

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

#65
20190010106
2019-01-10

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

#66
20180362429
2018-12-20

Method for extracting cannabidiol from cannabis

#67
20180312456
2018-11-01

Apparatus and method for preparing bisphenol A

#68
20180258020
2018-09-13

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

#69
20180230075
2018-08-16

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

#70
20180099236
2018-04-12

Rapid drying extraction targeting oil resin plant extracts

#71
20170296970
2017-10-19

Process for extraction and separation of oxyresveratrol from Roxb

#72
20160214920
2016-07-28

Methods of purifying cannabinoids, compositions and kits thereof

#73
20160168063
2016-06-16

METHOD FOR DIRECT AMMONOLYSIS OF POLYCARBONATE-CONTAINING MATERIALS AND PRODUCTS

#74
20160159716
2016-06-09

Bisphenol A preparation apparatus and preparation method

#75
20160030493
2016-02-04

Inhibition of Neurodegenerative Disease by Grape Seed Extract, Green Tea Extract and Probiotic Bacteria

#76
20150344390
2015-12-03

Method for obtaining polyphenols from a vegetable raw material containing same

#77
20150141708
2015-05-21

Process for purifying products from coal tar

#78
20150065755
2015-03-05

Phenol purification process

#79
20140221688
2014-08-07

ORGANICS RECOVERY FROM THE AQUEOUS PHASE OF BIOMASS CATALYTIC PYROLYSIS

#80
20130108820
2013-05-02

Process for producing bisphenol A with reduced sulfur content, polycarbonate made from the bisphenol A, and containers formed from the polycarbonate

#81
20120045406
2012-02-23

Method for extracting phenolic compounds from olive fruit water and preparation of an extract titrated with olive and grape polyphenols

#82
20110112333
2011-05-12

BPA process improvement

#83
20100331579
2010-12-30

Dialkyl phenols

#84
20100282591
2010-11-11

Removal of hydrocarbons from an aqueous stream

#85
20100280285
2010-11-04

Treatment of phenol

#86
20100105960
2010-04-29

Process for recovering phenol from a BPA waste stream

#87
20100059359
2010-03-11

Separation and purification of hydroquinone from crude mixtures thereof

#88
20090306436
2009-12-10

Preparation of purified hydroquinone and forming of same

#89
20090281355
2009-11-12

Process for the production of cardanol

#90
20090179175
2009-07-16

METHOD FOR THE INDUSTRIAL USE OF TYROSOL AND HYDROXYTYROSOL CONTAINED IN THE SOLID BY- PRODUCTS OF INDUSTRIAL OLIVE CRUSHING

#91
20080281129
2008-11-13

BPA process improvement

#92
20080188693
2008-08-07

Mass separation method of magnolol from cortex radix

#93
20080021249
2008-01-24

Method for removing impurities from phenol

#94
20070244345
2007-10-18

Process for treating phenol

#95
20070232775
2007-10-04

Process for the purification of dihydric phenols

#96
20070232774
2007-10-04

Method of purification of dihydric phenols

#97
20060224025
2006-10-05

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

#98
20060183949
2006-08-17

Process for production of bisphenol A

#99
20060014986
2006-01-19

Process for purifying bisphenol-a

#100
20060004234
2006-01-05

Process for the separation of phenol from phenol-containing streams from the preparation of Bisphenol A

#101
20050240065
2005-10-27

Extraction of phenol-containing effluent streams

#102
20050177007
2005-08-11

Dewatering of circulatory flows in the production of bisphenol A

#103
20050137427
2005-06-23

Process for purifying phenol-containing bisphenol A

#104
17102140
2023-11-14

Device and method for extraction of pure compounds

#105
16668583
2020-08-25

Cannabidiol isolate production systems and methods

#106
16668432
2020-12-08

Cannabidiol isolate production systems and methods

#107
16447853
2019-09-17

Processes for solvent extraction of cannabinoids, terpenes and flavonoids from biomass