Granted Patent
Utility
US 6,667,670 · App. 09/756,757
Microwave double-pole double-throw switch and microwave divide/through switch and power amplifier using thereof
Inventors:
Soung-Chol Hong, Doo-Young Ha
Patented Case
View Patent ↗
Granted: Dec 23, 2003
Filed: Jan 10, 2001
Inventors
Soung-Chol Hong
Doo-Young Ha
Assignee (at issue)
Korea Institute of Science and Technology
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.