Inventor

ANDERSON CATHERINE A

US3 patents

Patents

3 patents

US4440177AApr 3, 1984

Respiratory analyzer system

MEDICAL GRAPHICS CORP223 citations96

US4463764AAug 7, 1984

Cardiopulmonary exercise system

MEDICAL GRAPHICS CORP221 citations94

US4930519AJun 5, 1990

Method of graphing cardiopulmonary data

MEDICAL GRAPHICS CORP29 citations88