Growing community of inventors

Amsterdam, Netherlands

Sebastianus P Roefs

Average Co-Inventor Count = 3.00

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 = 5

Sebastianus P Roefs ↔ Herman M Muijs (1 patent)Sebastianus P Roefs ↔ Nicolaas Cornelis Beers (1 patent)Sebastianus P RoefsSebastianus P Roefs (1 patent)Herman M MuijsHerman M Muijs (7 patents)Nicolaas Cornelis BeersNicolaas Cornelis Beers (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Shell Oil Comapny (1 from 7,646 patents)


1 patent:

1. 5062970 - Surfactant composition

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12/22/2025
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