Granted Patent
Utility
US 6,319,938 · App. 09/467,488
Prophylactic or therapeutic drug for renal diseases
Inventors:
Kohei Nishikawa, Yumiko Shibouta, Keiji Kubo
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Dec 20, 1999
Inventors
Kohei Nishikawa
Yumiko Shibouta
Keiji Kubo
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.