Granted Patent
Utility
US 5,113,237 · App. 07/698,332
Planar pn-junction of high electric strength
Inventor:
Reinhard Stengl
Patented Case
View Patent ↗
Granted: May 12, 1992
Filed: May 6, 1991
Inventor
Reinhard Stengl
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.