Growing community of inventors

Charlotte, NC, United States of America

S Graham Stevens

Average Co-Inventor Count = 1.33

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 = 59

S Graham StevensSean P Duffy (1 patent)S Graham StevensS Graham Stevens (2 patents)Sean P DuffySean P Duffy (12 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Casella Waste Systems, Inc. (1 from 26 patents)

2. Re Community Energy, LLC (1 from 9 patents)


2 patents:

1. 8459466 - Systems and methods for optimizing a single-stream materials recovery facility

2. 7696874 - Methods and systems for monitoring groups of items, elements, and/or products using radio frequency identification

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as of
1/4/2026
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