Growing community of inventors

Garland, TX, United States of America

John A Renfro

Average Co-Inventor Count = 4.00

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 = 12

John A Renfro ↔ John A Hird (1 patent)John A Renfro ↔ Todd J Betz (1 patent)John A Renfro ↔ Ray S Naeini (1 patent)John A RenfroJohn A Renfro (1 patent)John A HirdJohn A Hird (20 patents)Todd J BetzTodd J Betz (3 patents)Ray S NaeiniRay S Naeini (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Intellicall, Inc. (1 from 23 patents)


1 patent:

1. D342251 - Pay telephone unit

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as of
1/12/2026
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