Heart Patents (Class 600/508)
- Testing artificially regulated or assisted heart (Class 600/510)
- Fetal heartbeat (Class 600/511)
- Orthogonal heartbeat electric signals combined to form vector signal (Class 600/512)
- Detecting heartbeat electric signal and diverse cardiovascular characteristic (Class 600/513)
- Sound generated by successive heartbeat electric signals to represent heart action (Class 600/514)
- Detecting arrhythmia (Class 600/515)
- Detecting signal repetition rate (Class 600/519)
- Detecting R portion of signal waveform (Class 600/521)
- Switching means for activating different monitoring systems, signal displays, or signal recorders (Class 600/522)
- Signal display or recording (Class 600/523)