C07C309/28 - CPC Classification Index

ClassID:

93355 ⎘

C07C309/28 - CPC Classification

Classification description:

Sulfonic acids; Halides, esters, or anhydrides thereof; Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton

Sub-classes:

C07C309/29 » of non-condensed six-membered aromatic rings 104
C07C309/33 » of six-membered aromatic rings being part of condensed ring systems 2
C07C309/39 » containing halogen atoms bound to the carbon skeleton 26
C07C309/40 » containing nitro or nitroso groups bound to the carbon skeleton 7
C07C309/41 » containing singly-bound oxygen atoms bound to the carbon skeleton 1
C07C309/44 » containing doubly-bound oxygen atoms bound to the carbon skeleton 38
C07C309/45 » containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton 1
C07C309/57 » containing carboxyl groups bound to the carbon skeleton 0

Recent Application in this class:

20210198469

2021-07-01

Formulation for use with conducting polymers in solid electrolytic capacitors

20200379353

2020-12-03

Photoresist pattern trimming compositions and pattern formation methods

20190267194

2019-08-29

Polyanion copolymers for use with conducting polymers in solid electrolytic capacitors

20170123314

2017-05-04

Thermal acid generators and photoresist pattern trimming compositions and methods

20160187783

2016-06-30

Photoresist pattern trimming compositions and methods

20160107982

2016-04-21

Chemical compounds derived from normemantine and use of same in the medical field

20140058128

2014-02-27

PRODUCTION OF HIGHER HYDROCARBONS FROM A METHANE CONVERSION PROCESS