Granted Patent
Utility
US 6,124,437 · App. 09/040,400
Immunoglobulin preparation and preparation process thereof
Inventors:
Yutaka Hirao, Motonori Hashimoto, Tae Kitamura, Yahiro Uemura
Patented Case
View Patent ↗
Granted: Sep 26, 2000
Filed: Mar 18, 1998
Inventors
Yutaka Hirao
Motonori Hashimoto
Tae Kitamura
Yahiro Uemura
Assignee (at issue)
Welfide Corporation
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.