Granted Patent
Utility
US 5,977,835 · App. 09/019,847
Method and circuit arrangement for reducing passband ripple of a bandpass filter
Inventor:
Guanghua Huang
Patented Case
View Patent ↗
Granted: Nov 2, 1999
Filed: Feb 6, 1998
Inventor
Guanghua Huang
Assignee (at issue)
ADC Telecommunications, 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.