Growing community of inventors

Almont, MI, United States of America

Stephen T Porter

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 = 105

Stephen T PorterJames T Ligon, Sr (2 patents)Stephen T PorterStephen T Porter (1 patent)James T Ligon, SrJames T Ligon, Sr (17 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. L&p Property Management Company (1 from 954 patents)


1 patent:

1. 6758522 - Apparatus and method for varying coefficients of friction in a variable apex back support

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12/20/2025
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