Granted Patent
Utility
US 6,648,931 · App. 09/634,270
Configuration and process for gasification of carbonaceous materials
Inventor:
Ashok D. Rao
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: Aug 8, 2000
Inventor
Ashok D. Rao
Assignee (at issue)
Fluor Corporation
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.