C07C309/27 - CPC Classification Index

ClassID:

93354 ⎘

C07C309/27 - CPC Classification

Classification description:

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

Recent Application in this class:

20260063994

2026-03-05

RADIATION-SENSITIVE COMPOSITION, METHOD FOR FORMING PATTERN AND ONIUM SALT COMPOUND

20250013150

2025-01-09

RADIATION-SENSITIVE COMPOSITION, PATTERN FORMATION METHOD, AND PHOTO-DEGRADABLE BASE

20230133465

2023-05-04

Compositions and methods for treating and preventing neurodegenerative disorders

20210017137

2021-01-21

Salts of an epidermal growth factor receptor kinase inhibitor

20200347012

2020-11-05

Compositions and methods for treating and preventing neurodegenerative disorders

20190152925

2019-05-23

Salts of an epidermal growth factor receptor kinase inhibitor

20170217904

2017-08-03

Salts of an epidermal growth factor receptor kinase inhibitor

20160370700

2016-12-22

Photoresist composition, compound, and production method thereof

20150004545

2015-01-01

Photoresist composition, compound, and production method thereof

#10

20130338392

2013-12-19

METHOD OF PRODUCING OPTICALLY ACTIVE 1-AMINO-2-VINYLCYCLOPROPANE CARBOXYLIC ACID ESTER

#11

20130280658

2013-10-24

Radiation-sensitive composition, and compound

#12

20100210871

2010-08-19

Reactive Extraction of Free Organic Acids from the Ammonium Salts Thereof