Granted Patent
Utility
US 5,856,345 · App. 08/779,604
Method for stabilizing pranoprofen and stable liquid preparation of pranoprofen
Inventors:
Koji Doi, Hisako Sawa, Yoshie Ozaki, Yoshiyuki Kimura
Patented Case
View Patent ↗
Granted: Jan 5, 1999
Filed: Jan 7, 1997
Inventors
Koji Doi
Hisako Sawa
Yoshie Ozaki
Yoshiyuki Kimura
Assignees (at issue)
SENJU PHARMACEUTICAL CO., LTD.
Yoshitomi Pharmaceutical Industries, Ltd.
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.