Granted Patent
Utility
US 5,735,281 · App. 08/695,267
Method of enhancing and prolonging the effect of ultrasound contrast agents
Inventors:
Patrick G. Rafter, Ronald Gatzke, Alwyn P. D'Sa
Patented Case
View Patent ↗
Granted: Apr 7, 1998
Filed: Aug 9, 1996
Inventors
Patrick G. Rafter
Ronald Gatzke
Alwyn P. D'Sa
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.