Granted Patent
Utility
US 6,749,998 · App. 09/968,665
Photoresist strippers containing reducing agents to reduce metal corrosion
Inventors:
George Schwartzkopf, Geetha Surendran
Patented Case
View Patent ↗
Granted: Jun 15, 2004
Filed: Oct 2, 2001
Inventors
George Schwartzkopf
Geetha Surendran
Assignee (at issue)
Mallinckrodt Baker, 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.