Granted Patent
Utility
US 6,517,870 · App. 09/674,150
Oral formulation comprising biguanide and an organic acid
Inventors:
Hiroyuki Nishii, Hirohisa Kobayashi, Kazuya Otoda
Patented Case
View Patent ↗
Granted: Feb 11, 2003
Filed: Oct 27, 2000
Inventors
Hiroyuki Nishii
Hirohisa Kobayashi
Kazuya Otoda
Assignee (at issue)
Sumitomo Pharmaceuticals Company Limited
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.