Growing community of inventors

East Greenwich, RI, United States of America

Hans R Espig

Average Co-Inventor Count = 3.00

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 = 37

Hans R Espig ↔ Patrick William Brown (1 patent)Hans R Espig ↔ Brian L Aiken (1 patent)Hans R EspigHans R Espig (1 patent)Patrick William BrownPatrick William Brown (69 patents)Brian L AikenBrian L Aiken (10 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Dart Industries Inc. (1 from 1,642 patents)


1 patent:

1. 5139453 - Shape sorting educational toy

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12/21/2025
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