Granted Patent
Utility
US 5,639,923 · App. 08/575,992
Metal-catalyzed preparation of perfluoroalkyl iodide telomers
Inventor:
Konrad von Werner
Patented Case
View Patent ↗
Granted: Jun 17, 1997
Filed: Dec 21, 1995
Inventor
Konrad von Werner
Assignee (at issue)
Hoechst GmbH
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.