Granted Patent
Utility
US 5,132,018 · App. 07/729,775
Isoconductive gradient ion chromatography
Inventors:
William R. Jones, Allan L. Heckenberg, Petr Jandik
Patented Case
View Patent ↗
Granted: Jul 21, 1992
Filed: Jul 10, 1991
Inventors
William R. Jones
Allan L. Heckenberg
Petr Jandik
Assignee (at issue)
Millipore Corporation
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.