Growing community of inventors

Sanford, NC, United States of America

Donald R Hart

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 = 4

Donald R HartFrancis B Northup (1 patent)Donald R HartDonald R Hart (1 patent)Francis B NorthupFrancis B Northup (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (1 from 832,812 patents)


1 patent:

1. 4232507 - Apparatus and method for wrapping core yarns

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as of
12/17/2025
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