Granted Patent
Utility
US 6,429,335 · App. 10/019,196
Reductive amination of aldehydes
Inventor:
Wolfgang Kiel
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Dec 12, 2001
Inventor
Wolfgang Kiel
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.