Granted Patent
Utility
US 5,182,198 · App. 07/614,132
Process for preparing (+)-homopilopic acid
Inventors:
Shoichi Kise, Mikio Hayashida, Aiichiro Ori, Junzou Hiratsuka, Hideaki Yamada
Patented Case
View Patent ↗
Granted: Jan 26, 1993
Filed: Nov 16, 1990
Inventors
Shoichi Kise
Mikio Hayashida
Aiichiro Ori
Junzou Hiratsuka
Hideaki Yamada
Assignee (at issue)
Mitsui Petrochemical 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.