Granted Patent
Utility
US 5,541,072 · App. 08/228,818
Method for magnetic separation featuring magnetic particles in a multi-phase system
Inventors:
Yuzhou Wang, Weixin Tang, William J. Cronin, Paul A. Liberti
Patented Case
View Patent ↗
Granted: Jul 30, 1996
Filed: Apr 18, 1994
Inventors
Yuzhou Wang
Weixin Tang
William J. Cronin
Paul A. Liberti
Assignee (at issue)
IMMUNIVEST 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.