Granted Patent
Utility
US 5,672,763 · App. 08/668,959
Process for the preparation of 2-substituted cyclopentanones
Inventors:
Nikolaus Muller, Thomas Essert
Patented Case
View Patent ↗
Granted: Sep 30, 1997
Filed: Jun 21, 1996
Inventors
Nikolaus Muller
Thomas Essert
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.