Granted Patent
Utility
US 6,657,431 · App. 09/875,436
Scanning magnetic microscope having improved magnetic sensor
Inventor:
Gang Xiao
Patented Case
View Patent ↗
Granted: Dec 2, 2003
Filed: Jun 6, 2001
Inventor
Gang Xiao
Assignee (at issue)
Brown University Research Foundation
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.