Granted Patent
Utility
US 6,719,694 · App. 09/747,310
Ultrasound transducers for imaging and therapy
Inventors:
Lee Weng, David M. Perozek, Jimin Zhang
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Dec 22, 2000
Inventors
Lee Weng
David M. Perozek
Jimin Zhang
Assignee (at issue)
Therus Corporation
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.