Granted Patent
Utility
US 5,728,735 · App. 08/794,310
Pharmaceutical composition containing R-.alpha.-lipoic acid or S-.alpha.-lipoic acid as active ingredient
Inventors:
Heinz Ulrich, Carl-Heinrich Weischer, Jurgen Engel, Helmut Hettche
Patented Case
View Patent ↗
Granted: Mar 17, 1998
Filed: Feb 3, 1997
Inventors
Heinz Ulrich
Carl-Heinrich Weischer
Jurgen Engel
Helmut Hettche
Assignee (at issue)
ASTA Pharma 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.