Granted Patent
Utility
US 6,620,867 · App. 09/673,683
Crystalline modification of mixtures of a nickel-quencher and a benzophenone and process for its preparation
Inventors:
Carlo Neri, Luciano Pallini, Giovanni Sandre
Patented Case
View Patent ↗
Granted: Sep 16, 2003
Filed: Dec 19, 2000
Inventors
Carlo Neri
Luciano Pallini
Giovanni Sandre
Assignee (at issue)
Great Lakes Chemical (Europe) GmbH
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.