Granted Patent
Utility
US 6,563,389 · App. 10/001,714
Phase locked loop with charge injection cancellation
Inventor:
Gerald Fischer
Patented Case
View Patent ↗
Granted: May 13, 2003
Filed: Oct 24, 2001
Inventor
Gerald Fischer
Assignee (at issue)
NORTHROP GRUMMAN CORPORATION
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.