Granted Patent
Utility
US 5,873,845 · App. 08/818,988
Ultrasound transducer with focused ultrasound refraction plate
Inventors:
Harvey E. Cline, Ronald Dean Watkins, George Raymond Russell, Kullervo Hynynen
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Mar 17, 1997
Inventors
Harvey E. Cline
Ronald Dean Watkins
George Raymond Russell
Kullervo Hynynen
Assignee (at issue)
General Electric Company
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.