Patents-Review.com
ClassID:

91330 ⎘

C07C41/40 - 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 change of physical state, e.g. by crystallisation

Sub-classes:
Recent Application in this class:
#1
20260015483
2026-01-15

DEPOLYMERIZATION METHOD FOR RESIN HAVING FLUORENE SKELETON, AND PRODUCT AND APPLICATION THEREOF

 #2
20240376034
2024-11-14

ISOLATION OF DIALKYLENE PHENOLIC GLYCOL ETHER

 #3
20240301167
2024-09-12

VOLATILE OR SEMI-VOLATILE NATURAL ANTIOXIDANTS SOURCED FROM A COMESTIBLE BYPRODUCT

 #4
20220356138
2022-11-10

PROCESS FOR THE DI-O-ALKYLATION OF 1,3-DIOLS TO 1,3-DIETHERS

 #5
20220135509
2022-05-05

SYNTHETIC METHOD OF 9,9-BIS[4-(2-HYDROXYETHOXY)PHENYL]FLUORENE

 #6
20210317059
2021-10-14

Method for preparing 2-tert-butyl-4-methoxyphenol and new crystal form thereof

 #7
20210317057
2021-10-14

Production method for crystal of reduced coenzyme Q10 having excellent stability

 #8
20210292262
2021-09-23

Solid presentation form of at least one phenol derivative and process for obtaining same

 #9
20210261752
2021-08-26

Volatile or semi-volatile natural antioxidants sourced from a comestible byproduct

 #10
20210070684
2021-03-11

PRODUCTION OF HIGHLY PURE META,META-COUPLED BIS(4-ALKYLPHENOL) DERIVATIVES AND USES THEREOF

 #11
20200369587
2020-11-26

PROCESS FOR THE HYDROXYLATION OF AN AROMATIC COMPOUND

 #12
20160368849
2016-12-22

Process for the high-yield preparation of P-(R)calix[9-20]arenes

 #13
20160355471
2016-12-08

Preparation of hydroxy-benzylbenzene derivatives

 #14
20160347697
2016-12-01

Process for recovery of pure components from product mixture of one step dimethyl ether synthesis reactor

 #15
20160332945
2016-11-17

Separation processing method for a product stream of a dimethyl ether reactor

 #16
20150376100
2015-12-31

Method for recovering fluorine-containing ether

 #17
20150361018
2015-12-17

PROCESS FOR CLEANING CONTAMINATED FLUIDS

 #18
20150284311
2015-10-08

Method for producing reduced coenzyme Q10

 #19
20150197471
2015-07-16

Method for producing compound

 #20
20150105591
2015-04-16

Method for scale extraction Quebrachitol from natural rubber industry waste water

 #21
20140212402
2014-07-31

Method of stabilizing reduced coenzyme Q

 #22
20140120073
2014-05-01

Reduced coenzyme Q10 crystal having excellent stability

 #23
20130184497
2013-07-18

Method for producing ditrimethylolpropane

 #24
20120095270
2012-04-19

Noncrystalline form of fluorene derivative and process for preparation thereof

 #25
20120091056
2012-04-19

Method for producing carbon film, carbon film and separator

 #26
20120029244
2012-02-02

Method for producing fluorene derivative

 #27
20110263906
2011-10-27

Method of producing reduced coenzyme Qcrystals with excellent handling properties

 #28
20100234643
2010-09-16

Method for production of reduced coenzyme Qusing water-containing organic solvent

 #29
20100105961
2010-04-29

Crystal polymorph of fluorene derivative and production method thereof

 #30
20090156698
2009-06-18

Process for the preparation of pure dimethyl ether

 #31
20080306309
2008-12-11

Separation/purification of desflurane from hydrogen fluoride

 #32
20070191646
2007-08-16

Method for producing ditrimethylolpropane

 #33
20050008630
2005-01-13

Method of stabilizing reduced coenzyme q10