Growing community of inventors

Lapeer, MI, United States of America

Ralph Michael Duke

Average Co-Inventor Count = 2.00

ph-index = 2

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 = 5

Ralph Michael DukeJohn Graeme Knox (2 patents)Ralph Michael DukeRalph Michael Duke (2 patents)John Graeme KnoxJohn Graeme Knox (16 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. The Gates Corporation (2 from 447 patents)


2 patents:

1. 9347521 - CVT belt

2. 8672788 - CVT belt

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as of
12/31/2025
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