Granted Patent
Utility
US 5,191,114 · App. 07/773,258
Process for enhancing the flow characteristics of ibuprofen
Inventor:
Jivn-Ren Chen
Patented Case
View Patent ↗
Granted: Mar 2, 1993
Filed: Oct 9, 1991
Inventor
Jivn-Ren Chen
Assignee (at issue)
SAGE PHARMACEUTICALS, 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.