Granted Patent
Utility
US 6,546,310 · App. 09/554,171
Process and device for controlling a metallurgical plant
Inventors:
Rudiger Doll, Otto Gramckow, Gunter Sorgel
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Jul 6, 2000
Inventors
Rudiger Doll
Otto Gramckow
Gunter Sorgel
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.