Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for reacting sulfuric acid and an aromatic hydrocarbon to purify a disulfonic acid product of an aromatic hydrocarbon

Process for reacting sulfuric acid and an aromatic hydrocarbon to purify a disulfonic acid product of an aromatic hydrocarbon

US Patent 4302403 · Granted Nov 24, 1981

Estimated economic value: $3,482,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Radio communication system2006
Hydroxyalkyl aryl ethers of di- and polyhydric phenols1993
Process for the preparation of M-aminophenols from resorcinol1992
Hydroxyalkylation of phenols or thiophenols with cyclic organic carbonates using1991
Long-chain alkylresorcinol phosphites1987
Tris-(3-hydroxy-4,6-di-t-alkylphenyl) phosphites1987
Novel biocides employing resorcinol derivatives1987
Synthetic oils1986
Novel compositions1986
Rust preventives1986
Novel N-methylolated/methoxymethylated aryldisulfonamides1983
Aryl sulfide/sulfonate polymer1981