Granted Patent
Utility
US 6,147,486 · App. 09/123,871
Device for analyzing an alternating voltage or current including a variable D.C. component
Inventors:
Thomas Koss, Guenter Nasswetter
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Jul 28, 1998
Inventors
Thomas Koss
Guenter Nasswetter
Assignee (at issue)
Robert Bosch GmbH
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.