Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Titanium activated hafnia and/or zirconia host phosphor containing a selected rare earth

Titanium activated hafnia and/or zirconia host phosphor containing a selected rare earth

US Patent 4996003 · Granted Feb 26, 1991

Estimated economic value: $8,765,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Porous composite filler compositions2023
Porous composite filler compositions2021
Porous composite filler compositions2018
Reducing toning spacing sensitivity2015
Bioactive compositions2015
Electrostatographic apparatus having improved transport member2014
Silica-alumina mixed oxide compositions2013
Developer for selective printing of raised information by electrography2013
Cleaning brush for electrostatographic apparatus2012
Toner surface treatment2012
Electrostatographic apparatus having improved transport member2010
Toner particles of controlled morphology2010