Growing community of inventors

Wilmington, DE, United States of America

John Charles Harden

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 = 16

John Charles HardenSebastian Vito Mastrangelo (1 patent)John Charles HardenJohn Charles Harden (1 patent)Sebastian Vito MastrangeloSebastian Vito Mastrangelo (6 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. E.i. Dupont De Nemours and Company (1 from 16,338 patents)


1 patent:

1. 4028276 - Pressure-sensitive elastic resistor compositions

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12/20/2025
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