Granted Patent
Utility
US 6,133,440 · App. 09/169,449
Process for the preparation of immunomodulatory polysaccharides from aloe
Inventors:
Zhihua Qiu, Belaid Mahiou
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Oct 9, 1998
Inventors
Zhihua Qiu
Belaid Mahiou
Assignee (at issue)
Univera Pharmaceuticals, Inc.
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.