Granted Patent
Utility
US 5,345,180 · App. 08/040,335
Method and arrangement for detecting short-circuits in circuit branches of electrical power system networks
Inventors:
Reinhard Maier, Walter Roethlingshoefer
Patented Case
View Patent ↗
Granted: Sep 6, 1994
Filed: Mar 30, 1993
Inventors
Reinhard Maier
Walter Roethlingshoefer
Assignee (at issue)
Siemens Aktiengesellschaft
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.