Growing community of inventors

Freeport, TX, United States of America

Joseph W Vandgriff

Average Co-Inventor Count = 3.00

ph-index = 1

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 = 33

Joseph W Vandgriff ↔ Ross G Baker, Jr (1 patent)Joseph W Vandgriff ↔ Edward A Haluska (1 patent)Joseph W VandgriffJoseph W Vandgriff (1 patent)Ross G Baker, JrRoss G Baker, Jr (32 patents)Edward A HaluskaEdward A Haluska (5 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Intermedics Inc. (1 from 232 patents)


1 patent:

1. 4903699 - Implantable cardiac stimulator with automatic gain control

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12/16/2025
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