Granted Patent
Utility
US 5,658,446 · App. 08/688,351
Preparative capillary electrophoresis with wide-bore capillary
Inventors:
Hongfeng Yin, Douglass McManigill, Catherine Keely-Templin, Robert R. Holloway
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Jul 30, 1996
Inventors
Hongfeng Yin
Douglass McManigill
Catherine Keely-Templin
Robert R. Holloway
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.