Growing community of inventors

Newburyport, MA, United States of America

Stephen Francis

Average Co-Inventor Count = 4.10

ph-index = 4

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 = 218

Stephen FrancisKenneth D Graham (4 patents)Stephen FrancisMichael D Kirk (3 patents)Stephen FrancisKenton Donald Geer (2 patents)Stephen FrancisGary J Troy (2 patents)Stephen FrancisEdward Tavino (2 patents)Stephen FrancisBernie Allen (2 patents)Stephen FrancisStephen Francis (4 patents)Kenneth D GrahamKenneth D Graham (7 patents)Michael D KirkMichael D Kirk (28 patents)Kenton Donald GeerKenton Donald Geer (20 patents)Gary J TroyGary J Troy (14 patents)Edward TavinoEdward Tavino (2 patents)Bernie AllenBernie Allen (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hyde Athletic Industries, Inc. (4 from 17 patents)


4 patents:

1. 5860226 - Shoe construction

2. 5561920 - Shoe construction having an energy return system

3. 5402588 - Sole construction

4. 5070629 - Sweet spot sole construction

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idiyas.com
as of
12/18/2025
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