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East Lyme, CT, United States of America

Donald H Stephens

Average Co-Inventor Count = 1.00

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 = 11

Donald H StephensDonald H Stephens (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Coleco Industries, Inc. (1 from 61 patents)


1 patent:

1. 4751353 - Doll or the like with position and motion sensing switch

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as of
12/15/2025
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