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Smithfield, UT, United States of America

John Royce Johnston

Average Co-Inventor Count = 1.00

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 = 6

John Royce JohnstonJohn Royce Johnston (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Campbell Scientific, Inc. (2 from 10 patents)


2 patents:

1. 8869608 - Environment monitoring system

2. 8800361 - Environment monitor

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as of
1/15/2026
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