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Oakland City, IN, United States of America

John W Barnstead

Average Co-Inventor Count = 3.00

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 = 14

John W Barnstead ↔ Kenneth J Rasche (2 patents)John W Barnstead ↔ James C Furness, Jr (2 patents)John W BarnsteadJohn W Barnstead (2 patents)Kenneth J RascheKenneth J Rasche (9 patents)James C Furness, JrJames C Furness, Jr (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Sun River Innovations, Ltd. (2 from 2 patents)


2 patents:

1. 5562822 - Apparatus for removing contaminants from waste fluids

2. 5417852 - Apparatus for removing contaminants from waste fluids

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as of
1/13/2026
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