Granted Patent
Utility
US 5,116,471 · App. 07/771,575
System and method for improving sample concentration in capillary electrophoresis
Inventors:
Ring-Ling Chien, Dean S. Burgi
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: Oct 4, 1991
Inventors
Ring-Ling Chien
Dean S. Burgi
Assignee (at issue)
Varian, 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.