Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Quick-change filter cartridge

Quick-change filter cartridge

US Patent D321394 · Granted Nov 5, 1991

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method for predicting corrosion potential, monitoring contaminant load and optim2020
System and method for securely connecting portions of a composite structure toge2017
Apparatus for stabilizing an elderly or disabled person2015
Apparatus for lifting, stabilizing, and mobilizing an elderly or disabled person2015
Key for a water filter assembly2011
Water purifying apparatuses2010
Keyed filter assembly2010
Water filter assembly having a key2010
Key for a water filter assembly2010
Thermal storage air conditioner2009
Heat exchanger support2007
Keyed filter assembly2006