Growing community of inventors

Gloucester, United Kingdom

David John Marfell

Average Co-Inventor Count = 5.00

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 = 8

David John Marfell ↔ Werner H Russ (1 patent)David John Marfell ↔ Mike Elliott (1 patent)David John Marfell ↔ Robert Dewhurst (1 patent)David John Marfell ↔ Charles Richard Langrick (1 patent)David John MarfellDavid John Marfell (1 patent)Werner H RussWerner H Russ (92 patents)Mike ElliottMike Elliott (2 patents)Robert DewhurstRobert Dewhurst (2 patents)Charles Richard LangrickCharles Richard Langrick (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Dystar Textilfarben Gmbh & Co. Deutschland Kg (1 from 101 patents)


1 patent:

1. 5810890 - Process for dyeing synthetic polyamide fiber materials

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12/29/2025
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