Granted Patent
Utility
US 5,815,014 · App. 08/753,627
Transistor based frequency multiplier
Inventors:
Xiangdong Zhang, Yong-Hoon Yun
Patented Case
View Patent ↗
Granted: Sep 29, 1998
Filed: Nov 27, 1996
Inventors
Xiangdong Zhang
Yong-Hoon Yun
Assignee (at issue)
Whitaker & Company
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.