Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for the preparation of naphthalenesulphonyl chloride

Process for the preparation of naphthalenesulphonyl chloride

US Patent 4339396 · Granted Jul 13, 1982

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method of processing a wafer2023
Method of processing a wafer2021
Specific mixtures of N,N-bis(2-hydroxyalkyl)-4-toluidine derivatives, their prep2016
Method for isolating di-trimethylol propane2014
Method for the decarboxylation of dicarboxylic acids2010
2-phenylbenzimidazole-5-sulphonic acid from isolated 3,4-diaminobenzenesulphonic2005
Benzodioxinothiophenes, their preparation and use2004
Process for the preparation of isolated 3,4-diaminobenzenesulphonic acid2004
Process for the alkylation of 3,4-dihydroxythiophene-2,5-dicarboxylic esters2004
Method for the production of 2,6-dichloro-5-fluoro-nicotinic acid and coarse and2002
Bis(2-chlorothiazolyl-5-methyl)amine and its salts, and process for working up r2002
Process for the preparation of dialkylthiophenes and alkylenedioxythiophenes2002