Growing community of inventors

Tempe, AZ, United States of America

Charles M 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 = 12

Charles M Campbell ↔ Charles J Bardo (1 patent)Charles M CampbellCharles M Campbell (1 patent)Charles J BardoCharles J Bardo (14 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tradewinds Technologies, Inc. (1 from 1 patent)


1 patent:

1. 4819448 - Evaporative cooler

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as of
12/19/2025
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