Granted Patent
Utility
US 6,641,940 · App. 09/974,430
Low loss dielectric materials for microwave applications
Inventors:
Yi-Qun Li, Xiao-Dong Xiang, Yi Dong, Shifan Cheng, Gang Wang, Ning Wang
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Oct 9, 2001
Inventors
Yi-Qun Li
Xiao-Dong Xiang
Yi Dong
Shifan Cheng
Gang Wang
Ning Wang
Assignee (at issue)
Intematix 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.