Granted Patent
Utility
US 6,480,734 · App. 09/609,558
Cardiac arrhythmia detector using ECG waveform-factor and its irregularity
Inventors:
Xu Zhang, Dongping Lin
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Jun 30, 2000
Inventors
Xu Zhang
Dongping Lin
Assignee (at issue)
Cardiac Science 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.