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Lewes, United Kingdom

David Malcolm Campbell

Average Co-Inventor Count = 3.00

ph-index = 1

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 = 2

David Malcolm Campbell ↔ George Macdonald (1 patent)David Malcolm Campbell ↔ Tinghu Yan (1 patent)David Malcolm CampbellDavid Malcolm Campbell (1 patent)George MacdonaldGeorge Macdonald (3 patents)Tinghu YanTinghu Yan (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Mobrey Limited (1 from 6 patents)


1 patent:

1. 9322759 - Vibrating tube densitometers

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12/31/2025
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