Granted Patent
Utility
US 5,598,073 · App. 08/292,693
Drive circuit for a brushless direct-current motor
Inventors:
Helmut Hans, Mojtaba Moini
Patented Case
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Granted: Jan 28, 1997
Filed: Aug 18, 1994
Inventors
Helmut Hans
Mojtaba Moini
Assignee (at issue)
Papst Licensing 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.