Granted Patent
Utility
US 5,837,211 · App. 08/852,367
Compositions and method for foam control in Bayer process
Inventors:
Samuel S. Wang, Dennis G. Downing, Peter V. Avotins
Patented Case
View Patent ↗
Granted: Nov 17, 1998
Filed: May 7, 1997
Inventors
Samuel S. Wang
Dennis G. Downing
Peter V. Avotins
Assignee (at issue)
CYTEC TECHNOLOGY CORP.
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.