Growing community of inventors

Amsterdam, Netherlands

Gerrit Ludolph Van Der Heijde

Average Co-Inventor Count = 2.67

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 = 3

Gerrit Ludolph Van Der HeijdeErik Ad Hermans (1 patent)Gerrit Ludolph Van Der HeijdeWillem Peter Louwerse (1 patent)Gerrit Ludolph Van Der HeijdeDaniel Koops (1 patent)Gerrit Ludolph Van Der HeijdeWillem Berend Bloem (1 patent)Gerrit Ludolph Van Der HeijdeDaniël Koops (0 patent)Gerrit Ludolph Van Der HeijdeGerrit Ludolph Van Der Heijde (2 patents)Erik Ad HermansErik Ad Hermans (4 patents)Willem Peter LouwerseWillem Peter Louwerse (1 patent)Daniel KoopsDaniel Koops (1 patent)Willem Berend BloemWillem Berend Bloem (1 patent)Daniël KoopsDaniël Koops (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Stichting Right on Sight (2 from 2 patents)


2 patents:

1. 7637608 - Glasses

2. 7393099 - Glasses

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as of
12/20/2025
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