Granted Patent
Utility
US 5,445,813 · App. 08/134,671
Stable microbubble suspensions as enhancement agents for ultrasound echography
Inventors:
Michel Schneider, Jean Brochot, Jerome Puginier, Feng Yan
Patented Case
View Patent ↗
Granted: Aug 29, 1995
Filed: Oct 12, 1993
Inventors
Michel Schneider
Jean Brochot
Jerome Puginier
Feng Yan
Assignee (at issue)
Bracco International BV
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.