Growing community of inventors

Essexville, MI, United States of America

Calvin David Hugo

Average Co-Inventor Count = 6.00

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

Calvin David HugoTheodore W Selby (2 patents)Calvin David HugoGregory C Miiller (2 patents)Calvin David HugoJonathan C Evans (2 patents)Calvin David HugoDouglas J Wirsing (2 patents)Calvin David HugoSarah Nuss-Warren (2 patents)Calvin David HugoCalvin David Hugo (2 patents)Theodore W SelbyTheodore W Selby (55 patents)Gregory C MiillerGregory C Miiller (19 patents)Jonathan C EvansJonathan C Evans (18 patents)Douglas J WirsingDouglas J Wirsing (4 patents)Sarah Nuss-WarrenSarah Nuss-Warren (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tannas Company (2 from 37 patents)


2 patents:

1. 10914719 - Grease oxidation

2. 10422783 - Grease oxidation

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as of
1/3/2026
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