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For the Inventor, By the Inventor

Havertown, PA, United States of America

Frederick Erdman Association


USPTO Granted Patents = 2

Forward Citations = 124

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1 inventor (with patents filed for the assignee):

goldMedal Frank H Erdman (2 out of 5 patents)


2 patents:

1. 5542421 - Method and apparatus for cardiovascular diagnosis (1996-08-06),
2. 5365924 - Method and apparatus for non-invasive cardiovascular diagnosis (1994-11-22),
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USPTO Data Jan 1 1976 - Dec 30 2025

2 Patents

#4 in Havertown, PA

#3,361 in Pennsylvania

#92,662 in US

...
Havertown, PA, United States of America

Frederick Erdman Association

Forward Citations = 124

1 inventor:

goldMedal Frank H Erdman (2 out of 5 patents)

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