Granted Patent
Utility
US 5,719,269 · App. 08/577,229
Chromatography adsorbents utilizing mercapto heterocyclic ligands
Inventors:
Alexander Schwarz, Meir Wilchek
Patented Case
View Patent ↗
Granted: Feb 17, 1998
Filed: Dec 22, 1995
Inventors
Alexander Schwarz
Meir Wilchek
Assignee (at issue)
Biosepra, Inc.
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.