Granted Patent
Utility
US 4,911,921 · App. 07/306,014
High ibuprofen content granulations
Inventors:
Larry E. Denton, Anil M. Salepkar
Patented Case
View Patent ↗
Granted: Mar 27, 1990
Filed: Feb 2, 1989
Inventors
Larry E. Denton
Anil M. Salepkar
Assignee (at issue)
MALLINCKRODT LLC
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.