Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Use of inorganic ammonium cation salts to maintain the flux and salt rejection characteristics of reverse osmosis and nanofiltration membranes during drying

US Patent 5658460 · Granted Aug 19, 1997

Estimated economic value: $9,010,000

Assignee

Inventors

View full patent text on Google Patents →