Granted Patent
Utility
US 5,015,350 · App. 07/432,061
Flow-rate-controlled surface-charge coating for capillary electrophoresis
Inventor:
John E. Wiktorowicz
Patented Case
View Patent ↗
Granted: May 14, 1991
Filed: Nov 6, 1989
Inventor
John E. Wiktorowicz
Assignee (at issue)
APPLIED BIOSYSTEMS, LLC
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.