Growing community of inventors

Des Moines, IA, United States of America

John Van Horn

Average Co-Inventor Count = 1.33

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 = 17

John Van HornFrancis A Wittern, Iii (1 patent)John Van HornJohn Van Horn (2 patents)Francis A Wittern, IiiFrancis A Wittern, Iii (15 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Fawn Engineering Corporation (2 from 32 patents)


2 patents:

1. 10402804 - Apparatus, system and method of obtaining items from a vending machine with an electronic benefits transfer card

2. 10055928 - Highly adjustable push-type dispensing module for dispensing items

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as of
12/21/2025
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