Granted Patent
Utility
US 6,726,781 · App. 10/241,895
High temperature permanent magnets
Inventors:
Marlin S. Walmer, Christina H. Chen, Shiqiang Liu, Michael H. Walmer, G. Edward Kuhl
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Sep 12, 2002
Inventors
Marlin S. Walmer
Christina H. Chen
Shiqiang Liu
Michael H. Walmer
G. Edward Kuhl
Assignees (at issue)
UNIVERSITY OF DAYTON
Electron Energy Corporation
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.