Granted Patent
Utility
US 5,522,993 · App. 08/412,743
Process and means for down stream processing
Inventors:
Mats Carlsson, Jan-Gunnar Gustafsson, Per Hedman, Per-åke Pernemalm, Jorgen Lonngren
Patented Case
View Patent ↗
Granted: Jun 4, 1996
Filed: Mar 29, 1995
Inventors
Mats Carlsson
Jan-Gunnar Gustafsson
Per Hedman
Per-åke Pernemalm
Jorgen Lonngren
Assignee (at issue)
Pharmacia Biotech AB
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.