Granted Patent
Utility
US 5,112,300 · App. 05/503,666
Method and apparatus for controlling ultrasonic fragmentation of body tissue
Inventor:
Alexander Ureche
Patented Case
View Patent ↗
Granted: May 12, 1992
Filed: Apr 3, 1990
Inventor
Alexander Ureche
Assignee (at issue)
Alcon Surgical, Inc.
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.