Growing community of inventors

Harlow Essex, United Kingdom

Robert John Simkins

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 = 10

Robert John Simkins ↔ David Anthony Salter (1 patent)Robert John SimkinsRobert John Simkins (1 patent)David Anthony SalterDavid Anthony Salter (3 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (1 from 832,812 patents)


1 patent:

1. 3933926 - Preparation of nitrophenols

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12/21/2025
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