Granted Patent
Utility
US 6,340,686 · App. 09/571,215
Thienopyrimidine compounds, their production and use
Inventors:
Shuichi Furuya, Nobuhiro Suzuki, Nobuo Choh, Yoshi Nara
Patented Case
View Patent ↗
Granted: Jan 22, 2002
Filed: May 16, 2000
Inventors
Shuichi Furuya
Nobuhiro Suzuki
Nobuo Choh
Yoshi Nara
Assignee (at issue)
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.