Granted Patent
Utility
US 6,698,331 · App. 09/719,666
Use of metal foams in armor systems
Inventors:
Chin-Jye Yu, Terry D. Claar, Harald H. Eifert
Patented Case
View Patent ↗
Granted: Mar 2, 2004
Filed: Feb 26, 2001
Inventors
Chin-Jye Yu
Terry D. Claar
Harald H. Eifert
Assignee (at issue)
Fraunhofer USA
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.