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Holgate, NY, United States of America

John K Pethullis

Average Co-Inventor Count = 1.00

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 = 8

John K PethullisJohn K Pethullis (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Portasilo Limited (1 from 5 patents)


1 patent:

1. 5622467 - Discharge means for a silo

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as of
12/18/2025
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