Granted Patent
Utility
US 4,837,110 · App. 07/214,889
Technetium-99m generator, its preparation and its use
Inventors:
Ludwig Kuhlmann, Dietrich Putter
Patented Case
View Patent ↗
Granted: Jun 6, 1989
Filed: Jun 29, 1988
Inventors
Ludwig Kuhlmann
Dietrich Putter
Assignee (at issue)
Hoechst GmbH
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.