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Cincinnati, OH, United States of America

Clarence E Campbell

Average Co-Inventor Count = 2.00

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 = 2

Clarence E CampbellCharles Michael Hardy (1 patent)Clarence E CampbellClarence E Campbell (1 patent)Charles Michael HardyCharles Michael Hardy (4 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. The Procter Gamble Company (1 from 17,167 patents)


1 patent:

1. D438613 - Surface pattern of a seam for a disposable article

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as of
12/25/2025
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