Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Magnetic drive centrifugal pump having ceramic bearings, ceramic thrust washers, and a water cooling channel

Magnetic drive centrifugal pump having ceramic bearings, ceramic thrust washers, and a water cooling channel

US Patent 6309188 · Granted Oct 30, 2001

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Fill and drain fittings for a hydroponic flood table2017
Combined filter and skimmer assembly for ponds2004
Centrifugal pump having anti-clogging backflow prevention gate1999
Centrifugal pump having a slidable gate1996
Aquarium filter/protein skimmer system1992
Extensible-retractable pool and billiard cue bridgestick1990