ClassID:

93293

C07C303/20 - CPC Classification

Classification description:

Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by addition of sulfurous acid or salts thereof to compounds having carbon-to-carbon multiple bonds

Recent Application in this class:
#1
20250042845
2025-02-06

HALOALKANE SULFONIC ACIDS, COMPOSITIONS THEREOF, AND RELATED METHODS

#2
20240360097
2024-10-31

Compound and Method for Preparing Same

#3
20230322663
2023-10-12

Haloalkane sulfonic acids, compositions thereof, and related methods

#4
20200024228
2020-01-23

Method for producing 2-acrylamido-2-methylpropane sulphonic acid

#5
20190112250
2019-04-18

Process for the preparation of lightly-branched hydrophobes and the corresponding surfactants and applications thereof

#6
20180244609
2018-08-30

Method for producing the 2-acrylamido-2-methylpropane sulfonic acid monomer and polymer comprising said monomer

#7
20180223173
2018-08-09

Mixed dimers from alpha-olefin sulfonic acids

#8
20160130206
2016-05-12

Process for the preparation of lightly-branched hydrophobes and the corresponding surfactants and applications thereof

#9
20150353442
2015-12-10

Method for producing olefin

#10
20150284350
2015-10-08

VINYLIDENE DIMER DERIVATIVES

#11
20150126770
2015-05-07

Removal of light alkylated aromatics from the heavy alkylated aromatics stream

#12
20140378700
2014-12-25

LIQUID PHASE DEHYDROGENATION OF HEAVY PARAFFINS

#13
20140357891
2014-12-04

Process for preparing a cross linking catalyst from cashew nut shell liquid

#14
20130245315
2013-09-19

Sulfonation in continuous-flow microreactors

#15
20130178649
2013-07-11

Sulfonic acid group-containing diamine compound and method for producing the same

#16
20130161014
2013-06-27

Amine adducts, derivatives thereof, methods for making such adducts and derivatives, and methods for using such adducts and derivatives

#17
20120029197
2012-02-02

Method for Preparing Sulfur-Containing Compounds

#18
20110112320
2011-05-12

Manufacture of hydrofluoroalkanesulfonic acids

#19
20100145093
2010-06-10

Manufacture of hydrofluoroalkanesulfonic acids

#20
20060276671
2006-12-07

Manufacture of hydrofluoroalkanesulfonic acids