Granted Patent
Utility
US 6,656,247 · App. 10/215,384
Selective precipitation of manganese from magnesium-containing solutions
Inventors:
Roman M. Genik-Sas-Berezowsky, John Stiksma
Patented Case
View Patent ↗
Granted: Dec 2, 2003
Filed: Aug 8, 2002
Inventors
Roman M. Genik-Sas-Berezowsky
John Stiksma
Assignee (at issue)
Dynatec, 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.