Granted Patent
Utility
US 6,597,265 · App. 10/010,891
Hybrid resonator microstrip line filters
Inventors:
Xiao-Peng Liang, Yongfei Zhu
Patented Case
View Patent ↗
Granted: Jul 22, 2003
Filed: Nov 13, 2001
Inventors
Xiao-Peng Liang
Yongfei Zhu
Assignee (at issue)
Paratek Microwave, Inc.
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.