Granted Patent
Utility
US 5,280,048 · App. 08/011,197
.beta.,.gamma.-dihydropolyprenyl alcohol derivatives and pharmaceutical composition containing a polyprenyl compound
Inventors:
Masaichi Yamamoto, Seiichi Araki, Hiroshi Yamamoto, Isao Yamatsu, Takeshi Suzuki, Akiharu Kajiwara, Yoshikazu Suzuki, Haruyoshi Arai
Patented Case
View Patent ↗
Granted: Jan 18, 1994
Filed: Jan 29, 1993
Inventors
Masaichi Yamamoto
Seiichi Araki
Hiroshi Yamamoto
Isao Yamatsu
Takeshi Suzuki
Akiharu Kajiwara
Yoshikazu Suzuki
Haruyoshi Arai
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.