Granted Patent
Utility
US 5,998,403 · App. 09/123,431
Salts of azelastine having improved solubility useful at providing a cytoprotective effect
Inventors:
Helmut Hettche, Reinhard Muckenschnabel, Gerhard Scheffler, Ilona Fleischhauer, Wolfgang Morick
Patented Case
View Patent ↗
Granted: Dec 7, 1999
Filed: Jul 28, 1998
Inventors
Helmut Hettche
Reinhard Muckenschnabel
Gerhard Scheffler
Ilona Fleischhauer
Wolfgang Morick
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.