Granted Patent
Utility
US 5,610,285 · App. 08/295,119
Purification of .alpha.-1 proteinase inhibitor using novel chromatographic separation conditions
Inventors:
Wytold Lebing, Sharon Chen
Patented Case
View Patent ↗
Granted: Mar 11, 1997
Filed: Aug 24, 1994
Inventors
Wytold Lebing
Sharon Chen
Assignee (at issue)
Bayer Aktiengesellschaft
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.