Growing community of inventors

Midlothian, VA, United States of America

Roger D Hamill

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 = 1

Roger D HamillStephen M Rybar (1 patent)Roger D HamillRoger D Hamill (1 patent)Stephen M RybarStephen M Rybar (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Ondeo Degremont (1 from 7 patents)


1 patent:

1. 7144500 - Variable speed waste removal system

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12/16/2025
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