Granted Patent
Utility
US 6,326,867 · App. 09/475,124
Dielectric filter having resonators arranged in series
Inventors:
Chang Hwa Lee, Bon Hee Koo, O Gon Chun, Dong Seok Jeon, Sang Seok Lee
Patented Case
View Patent ↗
Granted: Dec 4, 2001
Filed: Dec 30, 1999
Inventors
Chang Hwa Lee
Bon Hee Koo
O Gon Chun
Dong Seok Jeon
Sang Seok Lee
Assignee (at issue)
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
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.