Growing community of inventors

Wilmington, NC, United States of America

Richard Redfearn Hepner

Average Co-Inventor Count = 3.75

ph-index = 2

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 = 29

Richard Redfearn Hepner ↔ Robert E Michel (2 patents)Richard Redfearn Hepner ↔ Robert E Trotter (1 patent)Richard Redfearn Hepner ↔ George Malcolm Williamson (1 patent)Richard Redfearn Hepner ↔ Donald Richard Wheatcraft, Jr (1 patent)Richard Redfearn Hepner ↔ Stephen Dana Hall (1 patent)Richard Redfearn HepnerRichard Redfearn Hepner (2 patents)Robert E MichelRobert E Michel (9 patents)Robert E TrotterRobert E Trotter (9 patents)George Malcolm WilliamsonGeorge Malcolm Williamson (2 patents)Donald Richard Wheatcraft, JrDonald Richard Wheatcraft, Jr (1 patent)Stephen Dana HallStephen Dana Hall (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. E.i. Dupont De Nemours and Company (2 from 16,338 patents)


2 patents:

1. 5912275 - Process for depolymerizing polyester

2. 5391263 - Process for the separation of glycols from dimethyl terephthalate

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as of
1/6/2026
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