Granted Patent
Utility
US 6,149,883 · App. 08/327,980
Pressure oxidation process for the production of molybdenum trioxide from molybdenite
Inventors:
Victor John Ketcham, Enzo L. Coltrinari, Wayne W. Hazen
Patented Case
View Patent ↗
Granted: Nov 21, 2000
Filed: Oct 24, 1994
Inventors
Victor John Ketcham
Enzo L. Coltrinari
Wayne W. Hazen
Assignee (at issue)
Kennecott Utah Copper LLC
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.