Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for preparing coumarin sulfonates

Process for preparing coumarin sulfonates

US Patent 5773591 · Granted Jun 30, 1998

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Breast implant2025
Method for making absorbent oil fly ash powder2021
Method for making a water treatment adsorbent filter2021
Method for removing polycyclic aromatic hydrocarbons from water using ball mille2021
Method of removing organic pollutants from water using ball milled and sonicated2021
Substantially symmetrical 3-arm star block copolymers2017
Preparation, purification and use of high-X diblock copolymers2015
Contrast agents2012
Propanoates and processes for preparing the same2012
Epoxy resin, blocked polyisocyanate or polymers with polyhydroxystyrenes having 2011
Methods for preparing polymers from phenolic materials and compositions relating2010
Derivatized polyhydroxystyrenes with a novolak type structure and processes for 2010