Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Choline esters as absorption-enhancing agents for drug delivery through mucous membranes of the nasal, buccal, sublingual and vaginal cavities

US Patent 4835138 · Granted May 30, 1989

Estimated economic value: $10,642,000

Assignee

Inventors

View full patent text on Google Patents →