Granted Patent
Utility
US 5,032,222 · App. 07/212,394
Spray drier for the preparation of powders, agglomerates and the like
Inventor:
Alain Millioud
Patented Case
View Patent ↗
Granted: Jul 16, 1991
Filed: Jun 27, 1988
Inventor
Alain Millioud
Assignee (at issue)
Ciba-Geigy
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.