Granted Patent
Utility
US 6,303,837 · App. 09/387,020
Process for synthesizing .alpha.-substituted ring systems
Inventors:
Christoph Gürtler, Manfred Jautelat
Patented Case
View Patent ↗
Granted: Oct 16, 2001
Filed: Aug 31, 1999
Inventors
Christoph Gürtler
Manfred Jautelat
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.