Growing community of inventors

Monroe, MI, United States of America

David Charles Rafko

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 = 9

David Charles Rafko ↔ Timothy Johnson (1 patent)David Charles RafkoDavid Charles Rafko (1 patent)Timothy JohnsonTimothy Johnson (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Tenneco Automotive Inc. (1 from 40 patents)


1 patent:

1. 6581905 - Brake bleed tool

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as of
12/20/2025
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