Granted Patent
Utility
US 5,854,112 · App. 08/563,882
Transistor isolation process
Inventors:
Wolfgang Krautschneider, Werner M. Klingenstein
Patented Case
View Patent ↗
Granted: Dec 29, 1998
Filed: Nov 21, 1995
Inventors
Wolfgang Krautschneider
Werner M. Klingenstein
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.