Granted Patent
Utility
US 6,316,673 · App. 09/776,104
Process for producing aminodiphenylamines
Inventors:
Henry Giera, Torsten Pohl, Uwe Hugger, Adolf Sicheneder, Fred Schuhmacher, Adolf Brill
Patented Case
View Patent ↗
Granted: Nov 13, 2001
Filed: Feb 2, 2001
Inventors
Henry Giera
Torsten Pohl
Uwe Hugger
Adolf Sicheneder
Fred Schuhmacher
Adolf Brill
Assignee (at issue)
Bayer Aktiengesellschaft
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.