Granted Patent
Utility
US 5,211,801 · App. 07/730,590
Method for manufacturing single-crystal silicon carbide
Inventor:
Rene Stein
Patented Case
View Patent ↗
Granted: May 18, 1993
Filed: Jul 15, 1991
Inventor
Rene Stein
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.