Growing community of inventors

Compton, CA, United States of America

Dave Werthmann

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 = 0

Dave WerthmannJeff Romero (1 patent)Dave WerthmannFrank Casale (1 patent)Dave WerthmannDave Werthmann (1 patent)Jeff RomeroJeff Romero (4 patents)Frank CasaleFrank Casale (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Norco Industries, Inc. (1 from 135 patents)


1 patent:

1. 11655750 - Vehicle engine flushing machine with heating and reverse flow

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as of
1/13/2026
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