Granted Patent
Utility
US 6,562,312 · App. 09/739,597
Process for controlling the passivation of aluminum chloride formed in the chlorination of titanium-containing ores
Inventors:
James Timothy Cronin, Thomas Shields Elkins, Hans Hellmut Glaeser, Lisa Edith Helberg, Angela Ruth Strzelecki
Patented Case
View Patent ↗
Granted: May 13, 2003
Filed: Dec 18, 2000
Inventors
James Timothy Cronin
Thomas Shields Elkins
Hans Hellmut Glaeser
Lisa Edith Helberg
Angela Ruth Strzelecki
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.