Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Donor-substituted oxindigo derivatives and their use as colorants

Donor-substituted oxindigo derivatives and their use as colorants

US Patent 6156914 · Granted Dec 5, 2000

Estimated economic value: $3,498,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Automatic sorting of polymer materials on the basis of the fluorescence decay ti2022
Method and apparatus for identifying plastics and/or the additives therein2020
Use of benzotropolone derivatives as UV absorbers and antioxidants and their use2017
Systems for the light-induced separation of charges2016
Merocyanine derivatives2015
Bleach catalysts2015
Use of silane and siloxane bis(biphenyl) triazine derivatives as UV absorbers2015
Naphthocyanines for use as contrast agents2014
Stabilization of body-care and household products against degradation by uv radi2014
Stabilization of household, body-care and food products by using benzotropolone 2014
Use of specific bis(biphenyl)triazine derivatives and mixtures thereof as UV abs2013
Stabilization of UV-sensitive active ingredients2013