Granted Patent
Utility
US 6,586,989 · App. 10/005,456
Nonlinear digital differential amplifier offset calibration
Inventors:
Frederick Perner, Kenneth K. Smith
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: Nov 6, 2001
Inventors
Frederick Perner
Kenneth K. Smith
Assignee (at issue)
Hewlett-Packard Development Company, L.P.
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.