Growing community of inventors

Yankton, SD, United States of America

Steven R Lewis

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 = 10

Steven R LewisJay Hesse (1 patent)Steven R LewisBrent Culbertson (1 patent)Steven R LewisSteven R Lewis (1 patent)Jay HesseJay Hesse (3 patents)Brent CulbertsonBrent Culbertson (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Automatic Equipment Manufacturing Company (1 from 30 patents)


1 patent:

1. 7753391 - Torsionally-biased, shock-absorbing fifth wheel hitch

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as of
12/18/2025
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