Granted Patent
Utility
US 5,748,428 · App. 08/508,715
Pulse width modulation and protection circuit
Inventors:
Jeffrey T. Kelley, Bruce R. Wrenbeck
Patented Case
View Patent ↗
Granted: May 5, 1998
Filed: Jul 28, 1995
Inventors
Jeffrey T. Kelley
Bruce R. Wrenbeck
Assignee (at issue)
United Technologies Automotive
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.