Growing community of inventors

Charlotte, NC, United States of America

David James Pahl

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 = 31

David James PahlJohn W Hopkins (2 patents)David James PahlJack Edward Arfstrom (2 patents)David James PahlDavid James Pahl (2 patents)John W HopkinsJohn W Hopkins (8 patents)Jack Edward ArfstromJack Edward Arfstrom (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Deere + Company (2 from 8,451 patents)


2 patents:

1. 6938402 - Mowing blades having an impact energy absorbing structure

2. D487098 - Blade

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as of
12/19/2025
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