Granted Patent
Utility
US 6,433,205 · App. 10/050,617
Magnetic separation for silicon-containing materials
Inventors:
Jonathan Ashley Brinson, John Eric Herman, David William Snodgrass, Hidehiko Hosokawa
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Jan 15, 2002
Inventors
Jonathan Ashley Brinson
John Eric Herman
David William Snodgrass
Hidehiko Hosokawa
Assignees (at issue)
Dow Corning Corporation
Dow Corning Toray Silicone Company, Ltd.
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.