Growing community of inventors

Roanoke, VA, United States of America

David Johnson

Average Co-Inventor Count = 5.00

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 = 7

David Johnson ↔ Paul Francis Wyar (1 patent)David Johnson ↔ David R Smith (1 patent)David Johnson ↔ Richard Liberman (1 patent)David Johnson ↔ Duane Eareckson (1 patent)David JohnsonDavid Johnson (1 patent)Paul Francis WyarPaul Francis Wyar (11 patents)David R SmithDavid R Smith (2 patents)Richard LibermanRichard Liberman (1 patent)Duane EarecksonDuane Eareckson (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Acterna LLC (1 from 49 patents)


1 patent:

1. 7116760 - System and method for single-ended line analysis for qualification and mapping

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as of
12/17/2025
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