Granted Patent
Utility
US 5,339,816 · App. 07/964,549
Ultrasonic doppler blood flow monitoring system
Inventors:
Shigeru Akamatsu, Yuji Kondo
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Oct 21, 1992
Inventors
Shigeru Akamatsu
Yuji Kondo
Assignees (at issue)
Aloka Co., Ltd.
Shigeru Akamatsu
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.