Granted Patent
Utility
US 5,849,959 · App. 08/763,758
Derivatives of 2, 3, 6-trifluorophenols and a process for their preparation
Inventors:
Ralf Pfirmann, Rainer Wingen
Patented Case
View Patent ↗
Granted: Dec 15, 1998
Filed: Dec 11, 1996
Inventors
Ralf Pfirmann
Rainer Wingen
Assignee (at issue)
Clariant Corporation
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.