Granted Patent
Utility
US 4,904,477 · App. 07/378,480
Spray dried ibuprofen compositions
Inventors:
Ying T. R. Ho, Robert G. Blank
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Jul 13, 1989
Inventors
Ying T. R. Ho
Robert G. Blank
Assignee (at issue)
Amerimas Home Products, Inc.
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.