Granted Patent
Utility
US 6,350,749 · App. 09/601,866
Aminoguanidine hydrazone derivatives, process for producing the same and drugs thereof
Inventors:
Mitsuru Shiraishi, Shoji Fukumoto, Keiji Kusumoto
Patented Case
View Patent ↗
Granted: Feb 26, 2002
Filed: Aug 8, 2000
Inventors
Mitsuru Shiraishi
Shoji Fukumoto
Keiji Kusumoto
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.