Granted Patent
Utility
US 6,217,743 · App. 09/370,682
Process for recovering organic hydroxides from waste solutions
Inventors:
Roger Moulton, Weilian Lang, Allen H. Tanner
Patented Case
View Patent ↗
Granted: Apr 17, 2001
Filed: Aug 9, 1999
Inventors
Roger Moulton
Weilian Lang
Allen H. Tanner
Assignee (at issue)
SACHEM, INC.
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.