ClassID:

91328

C07C41/36 - CPC Classification

Classification description:

Preparation of ethers; Preparation of compounds having groups, groups or groups; Preparation of ethers; Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption

Recent Application in this class:
#1
20250153114
2025-05-15

POLYIMIDE-CONTAINING FILTRATION MEMBRANE, FILTERS, AND METHODS

#2
20250058267
2025-02-20

TWO-STAGE METHOD FOR RECOVERING HALOGENATED HYDROCARBONS

#3
20240400483
2024-12-05

PROCESS FOR THE SEPARATION OF PINITOL FROM A CAROB EXTRACT

#4
20240351967
2024-10-24

METHODS OF PREPARATION OF ZINGERONE, COMPOSITIONS COMPRISING ZINGERONE, AND USES THEREFOR

#5
20230250052
2023-08-10

SEPARATION METHOD

#6
20220226800
2022-07-21

Systems and methods for drying compounds

#7
20220111326
2022-04-14

Two-stage method for recovering halogenated hydrocarbons

#8
20220096978
2022-03-31

METHOD FOR PRODUCING AN ORGANIC SOLVENT

#9
20220017443
2022-01-20

Method for producing 3,5-dihydroxy-4-methoxybenzyl alcohol from bivalve

#10
20200269192
2020-08-27

POLYIMIDE-CONTAINING FILTRATION MEMBRANE, FILTERS, AND METHODS

#11
20200123087
2020-04-23

Intermolecular reaction of propargyl ethers with dimethylfuran in the presence of gold(I) complexes

#12
20200071338
2020-03-05

Cavitand compositions and methods of use thereof

#13
20190126264
2019-05-02

Ion exchange resins, purification methods and methods of making ionic resins

#14
20190106369
2019-04-11

Processing Base-Catalysed Alkoxylation Products

#15
20190009266
2019-01-10

Purification process for hydrophilic organic solvent

#16
20180334538
2018-11-22

Purification of 1,4-bis (4-phenoxybenzoyl)benzene by centrifugal filtration

#17
20180179134
2018-06-28

Process for producing diisopropyl ether from high purity propylene

#18
20180179133
2018-06-28

Process for producing diisopropyl ether from high purity propylene

#19
20170361247
2017-12-21

Method for purifying glycol used as a hydrate inhibitor

#20
20170334820
2017-11-23

USE OF 3,3'-DIMETHOXY-4,4'-DIHYDROXYSTILBENES AS A FLAVORING SUBSTANCE

#21
20160340280
2016-11-24

PROCESS FOR PREPARING 2,2'-DIHYDROXY-3,3'-DI-TERT-BUTYL-5,5'-DIMETHOXY-1,1'-BIPHENOL

#22
20160326695
2016-11-10

PROCESS FOR REFINING CHEMICALS FROM PULP AND PAPER MILL EFFLUENT

#23
20160075624
2016-03-17

Process for preparing and separating monodisperse polyethylene glycol

#24
20150322627
2015-11-12

Process for refining chemicals from pulp and paper mill wastewaters

#25
20150291722
2015-10-15

Method for producing polyoxymethylene dimethyl ethers

#26
20150274625
2015-10-01

Method for separating salified phenolic compounds

#27
20150203427
2015-07-23

ABATEMENT OF FLUOROETHER CARBOXYLIC ACIDS OR SALTS EMPLOYED IN FLUOROPOLYMER RESIN MANUFACTURE

#28
20150126783
2015-05-07

Method for producing refined glycerin alkyl ether

#29
20150105591
2015-04-16

Method for scale extraction Quebrachitol from natural rubber industry waste water

#30
20150044117
2015-02-12

Cavitand compositions and methods of use thereof

#31
20140094628
2014-04-03

Method of separating phenolic compounds in salified form

#32
20130072724
2013-03-21

Process for refining chemicals from pulp and paper mill wastewaters

#33
20120277478
2012-11-01

Processes for preparing polytrimethylene ether glycol

#34
20120264982
2012-10-18

Method for separating salified phenolic compounds

#35
20110230674
2011-09-22

METHOD OF SEPARATING PHENOLIC COMPOUNDS IN SALIFIED FORM

#36
20110144053
2011-06-16

Process for obtaining purified pterostilbene and methods of use thereof

#37
20100101997
2010-04-29

Method of isolating target substance using membrane and apparatus therefor

#38
20090281261
2009-11-12

Abatement of Fluoroether Carboxylic Acids or Salts Employed in Fluoropolymer Resin Manufacture

#39
20090054539
2009-02-26

Process for the preparation of dimethyl ether

#40
20090032465
2009-02-05

METHOD FOR THE ELIMINATION OF METAL COMPLEX CATALYSTS FROM TELOMERIZATION MIXTURES

#41
20070276164
2007-11-29

Processes for reducing color in polytrimethylene ether glycol polymers

#42
20060258755
2006-11-16

Preparation of sevoflurane with negligible water content

#43
20060246565
2006-11-02

Method of purifying reduced coenzyme q

#44
20060065600
2006-03-30

Processes for recovering oligomers of glycols and polymerization catalyst from waste streams

#45
20050261526
2005-11-24

Process for the purification of fluoromethyl hexafluoroisopropyl ether

#46
14461552
2015-12-01

Method of preparing bioactive compound from solid-state cultivated mycelium for anti-metastasis against lung cancer cells