Granted Patent
Utility
US 5,693,499 · App. 08/276,594
Process for preparing human coagulation factor VIII protein complex
Inventors:
Hiroshi Yonemura, Yoshitaka Tajima, Keishin Sugawara, Kenichi Masuda
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: Jul 18, 1994
Inventors
Hiroshi Yonemura
Yoshitaka Tajima
Keishin Sugawara
Kenichi Masuda
Assignees (at issue)
Juridical Foundation the Chemo-Sero-Therapeutic Research Institute
TEIJIN LIMITED
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.