Granted Patent
Utility
US 6,822,692 · App. 09/944,162
Digital filter
Inventor:
Andreas Menkhoff
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Aug 30, 2001
Inventor
Andreas Menkhoff
Assignee (at issue)
Infineon Technologies AG
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.