Growing community of inventors

Woodside, CA, United States of America

David Duff

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 = 47

David DuffMark W Fuller (1 patent)David DuffRobert Backman (1 patent)David DuffDavid Duff (1 patent)Mark W FullerMark W Fuller (66 patents)Robert BackmanRobert Backman (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Wet Enterprises, Inc. (1 from 25 patents)


1 patent:

1. 6203173 - Lighting assembly having above water and underwater operational capabilities

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as of
12/26/2025
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