Granted Patent
Utility
US 5,502,022 · App. 08/243,861
Chromatography adsorbents utilizing mercapto heterocyclic ligands
Inventors:
Alexander Schwarz, Meir Wilchek
Patented Case
View Patent ↗
Granted: Mar 26, 1996
Filed: May 16, 1994
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.