Granted Patent
Utility
US 6,350,289 · App. 09/308,524
Two-zone molten metal hydrogen-rich and carbon monoxide-rich gas generation process
Inventors:
Thomas C. Holcombe, Donald P. Malone
Patented Case
View Patent ↗
Granted: Feb 26, 2002
Filed: May 18, 1999
Inventors
Thomas C. Holcombe
Donald P. Malone
Assignees (at issue)
Marathon Ashland Petroleum LLC
Envi Res LLC
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.