Granted Patent
Utility
US 6,780,935 · App. 09/774,266
Fluoropolymer resins containing ionic or ionizable groups and products containing the same
Inventors:
Lotfi Hedhli, Laurent BILLON
Patented Case
View Patent ↗
Granted: Aug 24, 2004
Filed: Jan 30, 2001
Inventors
Lotfi Hedhli
Laurent BILLON
Assignee (at issue)
ATOFINA Chemicals, Inc.
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.