Granted Patent
Utility
US 5,389,643 · App. 08/013,080
Aminobenzoic acid derivatives useful for treating gastro-intestinal conditions
Inventors:
Shuhei Miyazawa, Shigeki Hibi, Hiroyuki Yoshimura, Takashi Mori, Yorihisa Hoshino, Mitsuo Nagai, Kouichi Kikuchi, Hisashi Shibata, Kazuo Hirota, Takashi Yamanaka, Isao Yamatsu, Masanori Mizuno
Patented Case
View Patent ↗
Granted: Feb 14, 1995
Filed: Feb 3, 1993
Inventors
Shuhei Miyazawa
Shigeki Hibi
Hiroyuki Yoshimura
Takashi Mori
Yorihisa Hoshino
Mitsuo Nagai
Kouichi Kikuchi
Hisashi Shibata
Kazuo Hirota
Takashi Yamanaka
Isao Yamatsu
Masanori Mizuno
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.