Granted Patent
Utility
US 5,453,382 · App. 07/992,232
Electrochromatographic preconcentration method
Inventors:
Milos V. Novotny, Takao Tsuda, Helena A. Soini
Patented Case
View Patent ↗
Granted: Sep 26, 1995
Filed: Dec 17, 1992
Inventors
Milos V. Novotny
Takao Tsuda
Helena A. Soini
Assignee (at issue)
THE TRUSTEES OF INDIANA UNIVERSITY
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.