Growing community of inventors

Amsterdam, Netherlands

Leonard E Gerards

Average Co-Inventor Count = 3.00

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 = 20

Leonard E GerardsEit Drent (1 patent)Leonard E GerardsJohannes A Van Doorn (1 patent)Leonard E GerardsMichael Hanack (1 patent)Leonard E GerardsJosephina C Brokken-Zijp (1 patent)Leonard E GerardsLeonard E Gerards (2 patents)Eit DrentEit Drent (214 patents)Johannes A Van DoornJohannes A Van Doorn (26 patents)Michael HanackMichael Hanack (5 patents)Josephina C Brokken-ZijpJosephina C Brokken-Zijp (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Shell Oil Comapny (1 from 7,645 patents)

2. Shell Oil Corporation (1 from 4 patents)


2 patents:

1. 5034463 - Conductive polymer compositions

2. 5030712 - Polymerization of CO/olefin with aryl phosphine sulfide

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as of
12/16/2025
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