Granted Patent
Utility
US 4,926,099 · App. 07/334,417
Bimodal controller for a multi-phase brushless DC motor
Inventors:
Dennis J. Ricker, Richard L. Foster
Patented Case
View Patent ↗
Granted: May 15, 1990
Filed: Apr 7, 1989
Inventors
Dennis J. Ricker
Richard L. Foster
Assignee (at issue)
General Motors LLC
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.