Granted Patent
Utility
US 4,313,930 · App. 06/089,718
Stable valepotriate compounds and process for their preparation
Inventors:
Martin Wischniewski, Lutz Feicho, Werner Althaus
Patented Case
View Patent ↗
Granted: Feb 2, 1982
Filed: Oct 31, 1979
Inventors
Martin Wischniewski
Lutz Feicho
Werner Althaus
Assignee (at issue)
Kali-Chemie Pharma GmbH
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.