Granted Patent
Utility
US 6,497,849 · App. 09/873,386
Synthesis of heteropolyacids
Inventors:
Martin Atkins, Benjamin Patrick Gracey, James Noel Martin Hegarty, Mark Royston Smith
Patented Case
View Patent ↗
Granted: Dec 24, 2002
Filed: Jun 5, 2001
Inventors
Martin Atkins
Benjamin Patrick Gracey
James Noel Martin Hegarty
Mark Royston Smith
Assignee (at issue)
BP Chemicals Limited
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.