Growing community of inventors

Fairfield, CA, United States of America

Kevin D Johnson

Average Co-Inventor Count = 2.00

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 = 8

Kevin D JohnsonJames G Rietzel (1 patent)Kevin D JohnsonKevin D Johnson (1 patent)James G RietzelJames G Rietzel (5 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Von Ardenne Anlagentechnik Gmbh (1 from 49 patents)


1 patent:

1. 7014741 - Cylindrical magnetron with self cleaning target

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as of
12/19/2025
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