Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Black iron oxide with improved heat stability and method of preparing same

Black iron oxide with improved heat stability and method of preparing same

US Patent 6179907 · Granted Jan 30, 2001

Estimated economic value: $1,498,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Dry erase inks, and associated methods and writing instruments2025
Opaque ink formulations and associated writing instruments2025
Writing instruments and associated methods2024
Dry erase inks and associated writing instruments2023
Metallic ink composition and writing instrument containing same2023
Writing instruments and associated methods2021
Ink delivery system2019
Transitorially erasable ink compositions and writing instruments containing same2017
Metallic ink composition and writing instrument containing same2015
Irreversible thermochromic ink compositions2014
Irreversible color changing ink compositions2014
Metallic ink composition and writing instrument containing same2014