Granted Patent
Utility
US 5,561,597 · App. 08/323,514
Compact and efficient transformerless power conversion system
Inventor:
Rudolf Limpaecher
Patented Case
View Patent ↗
Granted: Oct 1, 1996
Filed: Oct 14, 1994
Inventor
Rudolf Limpaecher
Assignee (at issue)
D.C. Transformation, Inc.
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.