Granted Patent
Utility
US 6,438,567 · App. 09/752,922
Method for selective filtering
Inventor:
Peter Schöllhorn
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: Jan 2, 2001
Inventor
Peter Schöllhorn
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.