Growing community of inventors

Grantham, NH, United States of America

Roger M Chamberlin

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 = 0

Roger M ChamberlinStephen W Norris (1 patent)Roger M ChamberlinRoger M Chamberlin (1 patent)Stephen W NorrisStephen W Norris (4 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Victor Equipment Company (1 from 134 patents)


1 patent:

1. 9550249 - High power factor rectifier/filter for three phase input welder or plasma cutter

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as of
12/20/2025
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