Granted Patent
Utility
US 6,670,175 · App. 10/143,194
Cryopreservation bag assembly for mammalian cell lines
Inventors:
De Qian WANG, Bruce A. Gardner, Rudiger Heidemann, Mokhtar Mered, William H. Kelsey
Patented Case
View Patent ↗
Granted: Dec 30, 2003
Filed: May 9, 2002
Inventors
De Qian WANG
Bruce A. Gardner
Rudiger Heidemann
Mokhtar Mered
William H. Kelsey
Assignee (at issue)
Bayer Pharmaceuticals 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.