Granted Patent
Utility
US 6,800,778 · App. 10/111,211
Process for producing optically active naphthalene derivative and optical resolver therefor
Inventors:
Isao Aoki, Mari Adachi, Mitsuru Kawada, Toru Yamano, Naohiro Taya
Patented Case
View Patent ↗
Granted: Oct 5, 2004
Filed: Apr 22, 2002
Inventors
Isao Aoki
Mari Adachi
Mitsuru Kawada
Toru Yamano
Naohiro Taya
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.