Granted Patent
Utility
US 6,676,730 · App. 09/863,640
Method of producing Nd-Fe-B based nanophase power
Inventors:
Byung Kee Kim, Chul Jin Choi, Xing Dong
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: May 23, 2001
Inventors
Byung Kee Kim
Chul Jin Choi
Xing Dong
Assignee (at issue)
KOREA INSTITUTE OF MACHINERY & MATERIALS
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.