Granted Patent
Utility
US 6,834,084 · App. 10/139,560
Direct digital polar modulator
Inventor:
Alexander Wayne Hietala
Patented Case
View Patent ↗
Granted: Dec 21, 2004
Filed: May 6, 2002
Inventor
Alexander Wayne Hietala
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.