Granted Patent
Utility
US 5,716,993 · App. 08/507,476
Anthranilic acid derivatives
Inventors:
Fumihiro Ozaki, Keiji Ishibashi, Hironori Ikuta, Hiroki Ishihara, Shigeru Souda
Patented Case
View Patent ↗
Granted: Feb 10, 1998
Filed: Sep 14, 1995
Inventors
Fumihiro Ozaki
Keiji Ishibashi
Hironori Ikuta
Hiroki Ishihara
Shigeru Souda
Assignee (at issue)
Eisai Inc.
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.