Growing community of inventors

Amsterdam, Netherlands

Gerrit Vietje

Average Co-Inventor Count = 3.26

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 = 22

Gerrit VietjeEvert Van Der Heide (5 patents)Gerrit VietjePen-Chung Wang (2 patents)Gerrit VietjeChung Wang (2 patents)Gerrit VietjeHerman P Ruyter (1 patent)Gerrit VietjeAletta A Ten Hoeve (1 patent)Gerrit VietjeMartinus L Van Druten (1 patent)Gerrit VietjeGerrit Vietje (5 patents)Evert Van Der HeideEvert Van Der Heide (38 patents)Pen-Chung WangPen-Chung Wang (54 patents)Chung WangChung Wang (2 patents)Herman P RuyterHerman P Ruyter (6 patents)Aletta A Ten HoeveAletta A Ten Hoeve (1 patent)Martinus L Van DrutenMartinus L Van Druten (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Shell Oil Comapny (5 from 7,646 patents)


5 patents:

1. 5869571 - Aqueous polymer emulsion

2. 5859125 - Aqueous polymer emulsion

3. 5843580 - Aqueous polymer emulsion

4. 5684080 - Aqueous polymer emulsion

5. 5633299 - Wood composite

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as of
1/4/2026
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