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Vlaardingen, Netherlands

Marcel Van Der Helm

Average Co-Inventor Count = 6.00

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 = 0

Marcel Van Der Helm ↔ Cornelis T Verrips (1 patent)Marcel Van Der Helm ↔ Ton Swarthoff (1 patent)Marcel Van Der Helm ↔ Annelies Smits (1 patent)Marcel Van Der Helm ↔ Monique Van Der Heiden (1 patent)Marcel Van Der Helm ↔ Dirk Herman Hondmann (1 patent)Marcel Van Der HelmMarcel Van Der Helm (1 patent)Cornelis T VerripsCornelis T Verrips (31 patents)Ton SwarthoffTon Swarthoff (20 patents)Annelies SmitsAnnelies Smits (1 patent)Monique Van Der HeidenMonique Van Der Heiden (1 patent)Dirk Herman HondmannDirk Herman Hondmann (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Lever Brothers Company, Division of Conopco, Inc. (1 from 588 patents)


1 patent:

1. 6107264 - Enzymatic bleach composition

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as of
12/13/2025
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