Growing community of inventors

Alma, MI, United States of America

Donald E Westerhof

Average Co-Inventor Count = 2.40

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 = 46

Donald E WesterhofLouis Brian Chapko (2 patents)Donald E WesterhofDavid S Ertl (1 patent)Donald E WesterhofDonald E Westerhof (2 patents)Louis Brian ChapkoLouis Brian Chapko (13 patents)David S ErtlDavid S Ertl (15 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Pioneer Hi-bred International, Inc. (2 from 6,595 patents)


2 patents:

1. 5948957 - Inbred maize line PH19V

2. 5569818 - Inbred maize line phap8

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as of
12/18/2025
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