Granted Patent
Utility
US 5,272,614 · App. 07/908,139
Microprocessor-controlled DC-DC converter
Inventors:
Manfred Brunk, Gunther Chluba, Karl-Heinz Dussel
Patented Case
View Patent ↗
Granted: Dec 21, 1993
Filed: Jul 2, 1992
Inventors
Manfred Brunk
Gunther Chluba
Karl-Heinz Dussel
Assignee (at issue)
U.S. Philips Corporation
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.