Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Structural modification of 19-norprogesterone I: 17-α-substituted-11-β-substituted-4-aryl and 21-substituted 19-norpregnadienedione as new antiprogestational agents

US Patent 8569276 · Granted Oct 29, 2013

Assignee

Inventors

View full patent text on Google Patents →