Growing community of inventors

Newtown Square, PA, United States of America

Frank H Erdman

Average Co-Inventor Count = 1.11

ph-index = 4

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 136

Frank H ErdmanWilliam J Ellis (1 patent)Frank H ErdmanFrank H Erdman (5 patents)William J EllisWilliam J Ellis (7 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Tropicana Products, Inc. (3 from 159 patents)

2. Frederick Erdman Association (2 from 2 patents)


5 patents:

1. 5542421 - Method and apparatus for cardiovascular diagnosis

2. 5365924 - Method and apparatus for non-invasive cardiovascular diagnosis

3. 4355724 - Apparatus for sensing depressions in top panels of containers

4. 4037734 - Method and apparatus for depalletizing

5. 4020949 - Bottle inspection device

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as of
1/3/2026
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