Granted Patent
Utility
US 5,441,971 · App. 08/137,135
Thiazolidinedione derivatives, production and use thereof
Inventors:
Takashi Sohda, Hitoshi Ikeda, John C. Greenfield, Jerry R. Colca, Edgar N. Petzold
Patented Case
View Patent ↗
Granted: Aug 15, 1995
Filed: Oct 12, 1993
Inventors
Takashi Sohda
Hitoshi Ikeda
John C. Greenfield
Jerry R. Colca
Edgar N. Petzold
Assignees (at issue)
The Upjohn Co.
Takeda Chemical 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.