Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Liquid filtration using hydrophilic cationic isotropic microporous nylon membrane

Liquid filtration using hydrophilic cationic isotropic microporous nylon membrane

US Patent 4708803 · Granted Nov 24, 1987

Estimated economic value: $1,084,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Pre-metered, unsupported multilayer microporous membrane2006
Pre-metered, unsupported multilayer microporous membrane2004
Filter sheet and process for purifying photoresist composition employing the fil2004
Filter sheet and process for purifying photoresist composition employing the fil2004
Low fluorescence nylon/glass composites for micro-analytical diagnostic applicat2004
Unsupported multizone microporous membrane2004
Process for purifying photoresist composition employing a filter sheet2003
Process for purifying photoresist composition employing a filter sheet2003
Microorganism filter and method for removing microorganism from water2003
Filter sheet for purifying photoresist composition2000
Filter sheet for purifying photoresist composition2000
Hydrolytically stable nylon membrane1995