Growing community of inventors

Redding, CA, United States of America

James P Ellis

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 = 7

James P EllisSanford F Campbell (1 patent)James P EllisRobert E Jones (1 patent)James P EllisJames P Ellis (1 patent)Sanford F CampbellSanford F Campbell (23 patents)Robert E JonesRobert E Jones (6 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Letro Products, Inc. (1 from 15 patents)


1 patent:

1. 6035879 - Automatic fill valve assembly

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as of
12/18/2025
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