Granted Patent
Utility
US 5,773,651 · App. 08/753,714
Process for the preparation of fluorine-containing chemical compounds
Inventors:
Ralf Pfirmann, Friedrich Seitz
Patented Case
View Patent ↗
Granted: Jun 30, 1998
Filed: Nov 27, 1996
Inventors
Ralf Pfirmann
Friedrich Seitz
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.