Granted Patent
Utility
US 6,642,048 · App. 09/900,752
Conditioned media for propagating human pluripotent stem cells
Inventors:
Chunhui Xu, Joseph D. Gold
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Jul 6, 2001
Inventors
Chunhui Xu
Joseph D. Gold
Assignee (at issue)
Geron 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.