Granted Patent
Utility
US 5,910,237 · App. 08/815,382
Process for recovering organic hydroxides from waste solutions
Inventors:
Roger Moulton, Mark Hellums
Patented Case
View Patent ↗
Granted: Jun 8, 1999
Filed: Mar 11, 1997
Inventors
Roger Moulton
Mark Hellums
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.