Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Liquid phthalic anhydride recovery process

Liquid phthalic anhydride recovery process

US Patent 5508443 · Granted Apr 16, 1996

Estimated economic value: $97,267,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Liquid phthalic anhydride recovery process using a rectification tower1998
Process for the disposal of phthalic anhydride decomposer vapors1993
Bubble level1989