Growing community of inventors

Hudson, NH, United States of America

Stephen MacDonald

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

Stephen MacDonaldRobert Stockton Johnson (1 patent)Stephen MacDonaldStephen MacDonald (1 patent)Robert Stockton JohnsonRobert Stockton Johnson (9 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Horizon Technology, Inc. (1 from 6 patents)


1 patent:

1. 7935536 - System for water removal and solvent evaporation

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12/19/2025
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