Growing community of inventors

Harrison Township, MI, United States of America

Fred Zarna

Average Co-Inventor Count = 4.44

ph-index = 2

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 = 33

Fred ZarnaMichael R Dugas (2 patents)Fred ZarnaVelibor Kilabarda (2 patents)Fred ZarnaGreg Bildson (2 patents)Fred ZarnaWilliam J Maybee (1 patent)Fred ZarnaFred Zarna (2 patents)Michael R DugasMichael R Dugas (31 patents)Velibor KilabardaVelibor Kilabarda (7 patents)Greg BildsonGreg Bildson (2 patents)William J MaybeeWilliam J Maybee (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Progressive Tool and Industries Company (2 from 53 patents)


2 patents:

1. 6698736 - Clamping locator

2. 6685177 - Clamping locator

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as of
1/11/2026
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