Growing community of inventors

Storm Lake, IA, United States of America

Daniel L Frederick

Average Co-Inventor Count = 3.00

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 = 17

Daniel L FrederickChristopher T Fitzgerald (2 patents)Daniel L FrederickKurt W Olsen (2 patents)Daniel L FrederickDaniel L Frederick (2 patents)Christopher T FitzgeraldChristopher T Fitzgerald (4 patents)Kurt W OlsenKurt W Olsen (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Meridian Manufacturing Group (2 from 3 patents)


2 patents:

1. 9539927 - Seed cart

2. 8931995 - Seed cart

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as of
12/20/2025
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