Granted Patent
Utility
US 6,281,400 · App. 09/462,970
Process for preparation of a catalytic microcomposite from a silicate and a highly fluorinated ion exchange resin
Inventors:
Mark Andrew Harmer, Qun Sun
Patented Case
View Patent ↗
Granted: Aug 28, 2001
Filed: Jan 14, 2000
Inventors
Mark Andrew Harmer
Qun Sun
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.