Growing community of inventors

Teton Village, WY, United States of America

Harol Koyama

Average Co-Inventor Count = 3.00

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 = 1

Harol KoyamaMichael Tyler Hicks (2 patents)Harol KoyamaKevin C Desrosiers (2 patents)Harol KoyamaHarol Koyama (2 patents)Michael Tyler HicksMichael Tyler Hicks (9 patents)Kevin C DesrosiersKevin C Desrosiers (4 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. H2 Powertech, LLC (2 from 9 patents)


2 patents:

1. 11831051 - Hydrogen-producing fuel cell systems and methods of operating hydrogen-producing fuel cell systems for backup power operations

2. 11316180 - Hydrogen-producing fuel cell systems and methods of operating hydrogen-producing fuel cell systems for backup power operations

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1/3/2026
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