Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Substituted 3-(4-phenyl-1-piperazinyl)alkylquinazolin-2,4-(1H,3H) diones, methods of preparation, compositions and method of use

US Patent 4711883 · Granted Dec 8, 1987

Estimated economic value: $67,402,000

Assignee

Inventors

View full patent text on Google Patents →