Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Methods for producing and purifying 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine monomers and polycarbonates derived therefrom

US Patent 7470796 · Granted Dec 30, 2008

Assignee

Inventors

View full patent text on Google Patents →