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Fishers, IN, United States of America

James Joseph Hartmann

Average Co-Inventor Count = 2.40

ph-index = 2

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 = 64

James Joseph Hartmann ↔ Everett Wayne Mathis (2 patents)James Joseph Hartmann ↔ Jerry Lee Ferriell (1 patent)James Joseph HartmannJames Joseph Hartmann (2 patents)Everett Wayne MathisEverett Wayne Mathis (7 patents)Jerry Lee FerriellJerry Lee Ferriell (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Captioncall, LLC (2 from 26 patents)


2 patents:

1. D739372 - Captioning communication device

2. D725623 - Captioning communication device

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as of
12/4/2025
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