Granted Patent
Utility
US 6,297,087 · App. 09/393,700
Process for DRAM cell production
Inventors:
Guenther Koffler, Siegfried Mischitz
Patented Case
View Patent ↗
Granted: Oct 2, 2001
Filed: Sep 10, 1999
Inventors
Guenther Koffler
Siegfried Mischitz
Assignee (at issue)
Siemens PLC
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.