Patents-Review.com
ClassID:

93543 ⎘

C07C319/26 - CPC Classification

Classification description:

Preparation of thiols, sulfides, hydropolysulfides or polysulfides Separation; Purification; Stabilisation; Use of additives

Sub-classes:
Recent Application in this class:
#1
20230022196
2023-01-26

ADDITIVE USED IN METHIONINE PREPARATION PROCESS, AND METHIONINE PREPARATION METHOD

 #2
20210347817
2021-11-11

Method for producing N-acetyl dipeptide and N-acetyl amino acid

 #3
20210347732
2021-11-11

Storage-stable form of 3-methylthiopropionaldehyde

 #4
20210017100
2021-01-21

Organic reactions carried out in aqueous solution in the presence of a hydroxyalkyl(alkyl)cellulose or an alkylcellulose

 #5
20200277258
2020-09-03

Method for preparation of N-acetyl cysteine amide and derivatives thereof

 #6
20200148610
2020-05-14

Organic reactions carried out in aqueous solution in the presence of a hydroxyalkyl(alkyl)cellulose or an alkylcellulose

 #7
20190367450
2019-12-05

Methods and compositions for preventing degradation of dimethyl trisulfide

 #8
20180282270
2018-10-04

Preparation method of polythiol for optical lenses by using metal sulfide

 #9
20180282269
2018-10-04

POLYTHIOL COMPOSITION WITH IMPROVED LONG-TERM STORAGE STABILITY AND OPTICAL LENSES USING SAME

 #10
20180179155
2018-06-28

Storage of 3-methylthiopropionaldehyde and methyl mercaptan

 #11
20180179154
2018-06-28

Method for producing 3-mercaptopropionic acid, and methods using same for producing carboxylic acid ester compound having mercapto group and thiourethane-based optical material

 #12
20170217850
2017-08-03

ORGANIC REACTIONS CARRIED OUT IN AQUEOUS SOLUTION IN THE PRESENCE OF A HYDROXYALKYL(ALKYL)CELLULOSE OR AN ALKYLCELLULOSE

 #13
20170137756
2017-05-18

Sulfur-containing compounds as solvents

 #14
20160229799
2016-08-11

Process for obtaining methionine

 #15
20160159737
2016-06-09

Process for the preparation of a polyunsaturated ketone compound

 #16
20160068480
2016-03-10

Process for the preparation of methionine

 #17
20150051421
2015-02-19

Process for the preparation of methionine

 #18
20120215021
2012-08-23

Storage-stable 2-hydroxy-4-(methylthio)butyronitrile

 #19
20120136058
2012-05-31

Method For Increasing The Solubility Of Methionine By Mineral Addition And Acid Treatment

 #20
20120132858
2012-05-31

Solvent composition based on an oxide of an organic sulfide with masked odour

 #21
20110024678
2011-02-03

Organic-sulphide composition with masked odour

 #22
20070232836
2007-10-04

Method for isolating a thiol

 #23
20050131111
2005-06-16

Process for the preparation of methionine

 #24
16233765
2020-05-26

Process for preparing DTEA HCl