Granted Patent
Utility
US 6,514,897 · App. 09/481,184
Carbide and oxycarbide based compositions, rigid porous structures including the same, methods of making and using the same
Inventors:
David Moy, Chunming Niu, Jun Ma, James M. Willey
Patented Case
View Patent ↗
Granted: Feb 4, 2003
Filed: Jan 12, 2000
Inventors
David Moy
Chunming Niu
Jun Ma
James M. Willey
Assignee (at issue)
Hyperion Catalysis International
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.