Growing community of inventors

Amsterdam, Netherlands

Petrus W Tjan

Average Co-Inventor Count = 4.00

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 = 28

Petrus W Tjan ↔ Pieter B Kwant (2 patents)Petrus W Tjan ↔ Dirk Kanbier (2 patents)Petrus W Tjan ↔ Mohammed Akbar (2 patents)Petrus W TjanPetrus W Tjan (2 patents)Pieter B KwantPieter B Kwant (6 patents)Dirk KanbierDirk Kanbier (5 patents)Mohammed AkbarMohammed Akbar (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Shell Oil Comapny (2 from 7,646 patents)


2 patents:

1. 4201659 - Process for the preparation of gas oil

2. 4200519 - Process for the preparation of gas oil

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12/16/2025
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