Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Derivatives of N-[2-(tetrahydro-3,5-dioxo-1H-pyrrolizin-7a(5H)-yl)ethyl]amine as cognition activators

US Patent 4563469 · Granted Jan 7, 1986

Estimated economic value: $7,514,000

Assignee

Inventors

View full patent text on Google Patents →