Granted Patent
Utility
US 6,749,554 · App. 09/914,161
Medical tools and devices with improved ultrasound visibility
Inventors:
Robert A. Snow, Henry S. Wolfe, Anna Rydbeck, Tore Gjorsvik, Steven Coffey, Hakan Malmgren, Oskar Axellson
Patented Case
View Patent ↗
Granted: Jun 15, 2004
Filed: Jan 11, 2002
Inventors
Robert A. Snow
Henry S. Wolfe
Anna Rydbeck
Tore Gjorsvik
Steven Coffey
Hakan Malmgren
Oskar Axellson
Assignee (at issue)
Amersham PLC
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.