Granted Patent
Utility
US 5,840,881 · App. 08/437,227
Composition containing a water-insoluble or slightly water-soluble compound with enhanced water-solubility
Inventors:
Yoshiaki Uda, Takako Yamauchi, Yasushi Nakagawa, Toshihiro Ishiguro, Masahide Oka, Takamasa Yamaguchi, Ikuo Nogami
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: May 8, 1995
Inventors
Yoshiaki Uda
Takako Yamauchi
Yasushi Nakagawa
Toshihiro Ishiguro
Masahide Oka
Takamasa Yamaguchi
Ikuo Nogami
Assignee (at issue)
Takeda Chemical 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.