Growing community of inventors

Alkmaar, Netherlands

Johannes Martinus Kroon

Average Co-Inventor Count = 6.00

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 = 13

Johannes Martinus Kroon ↔ Jan Cornelis Hummelen (2 patents)Johannes Martinus Kroon ↔ Joop Knol (2 patents)Johannes Martinus Kroon ↔ Wilhelmus Johannus Hermanus Verhees (2 patents)Johannes Martinus Kroon ↔ Martinus Maria Wienk (2 patents)Johannes Martinus Kroon ↔ René Albert Johan Janssen (2 patents)Johannes Martinus Kroon ↔ Rene Albert Janssen (1 patent)Johannes Martinus Kroon ↔ Wilhelmus Johannus Verhees (1 patent)Johannes Martinus KroonJohannes Martinus Kroon (2 patents)Jan Cornelis HummelenJan Cornelis Hummelen (14 patents)Joop KnolJoop Knol (2 patents)Wilhelmus Johannus Hermanus VerheesWilhelmus Johannus Hermanus Verhees (2 patents)Martinus Maria WienkMartinus Maria Wienk (2 patents)René Albert Johan JanssenRené Albert Johan Janssen (2 patents)Rene Albert JanssenRene Albert Janssen (1 patent)Wilhelmus Johannus VerheesWilhelmus Johannus Verhees (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Rijksuniversiteit Groningen (2 from 55 patents)


2 patents:

1. 8481996 - Organic material photodiode

2. 7906797 - Organic material photodiode

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as of
12/19/2025
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