Growing community of inventors

Marshalltown, IA, United States of America

Ralph W Zeigler

Average Co-Inventor Count = 5.00

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 = 42

Ralph W ZeiglerGary L Scott (1 patent)Ralph W ZeiglerJohn W Duffy (1 patent)Ralph W ZeiglerDennis Gene Sickels (1 patent)Ralph W ZeiglerWilliam J Bonzer (1 patent)Ralph W ZeiglerRalph W Zeigler (1 patent)Gary L ScottGary L Scott (11 patents)John W DuffyJohn W Duffy (9 patents)Dennis Gene SickelsDennis Gene Sickels (7 patents)William J BonzerWilliam J Bonzer (7 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (1 from 832,812 patents)


1 patent:

1. 4624442 - Control regulator having a rolling diaphragm

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12/20/2025
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