Granted Patent
Utility
US 5,409,825 · App. 08/133,093
Expansion of human hematopoietic progenitor cells in a liquid medium
Inventors:
Ronald Hoffman, John Brandt
Patented Case
View Patent ↗
Granted: Apr 25, 1995
Filed: Oct 12, 1993
Inventors
Ronald Hoffman
John Brandt
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.