Growing community of inventors

Green-Haworth, United Kingdom

David Jarman

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 = 5

David JarmanKevin Stones (3 patents)David JarmanDavid Thomas Barker (3 patents)David JarmanDavid Jarman (3 patents)Kevin StonesKevin Stones (23 patents)David Thomas BarkerDavid Thomas Barker (11 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Black Decker Inc. (3 from 5,073 patents)


3 patents:

1. 9717185 - Vegetation pruning device

2. 8069575 - Vegetation pruning device

3. 8065805 - Vegetation pruning device

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as of
12/9/2025
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