Growing community of inventors

Mt. Shasta, CA, United States of America

John Cornelius Fryer

Average Co-Inventor Count = 2.00

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 = 19

John Cornelius FryerChristopher Paul Zaler (2 patents)John Cornelius FryerJohn Cornelius Fryer (2 patents)Christopher Paul ZalerChristopher Paul Zaler (10 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Symtar Ventures (2 from 2 patents)


2 patents:

1. 9757632 - Device and method for launching a projectile across a range

2. D782588 - Projectile launching device

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as of
12/5/2025
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