Growing community of inventors

Cedar Falls, IA, United States of America

Paul Dennis Koelling

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 = 31

Paul Dennis KoellingRobert Eugene Freestone (2 patents)Paul Dennis KoellingPaul A Stephens (1 patent)Paul Dennis KoellingPaul Dennis Koelling (2 patents)Robert Eugene FreestoneRobert Eugene Freestone (18 patents)Paul A StephensPaul A Stephens (134 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Pioneer Hi-bred International, Inc. (2 from 6,615 patents)


2 patents:

1. 7544865 - Soybean variety XB26R06

2. 6166296 - Soybean variety 92B35

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as of
1/3/2026
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