Growing community of inventors

Aurich, Germany

Dirk Holtkamp

Average Co-Inventor Count = 2.40

ph-index = 3

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 = 21

Dirk Holtkamp ↔ Rolf Rohden (4 patents)Dirk Holtkamp ↔ Aloys Wobben (1 patent)Dirk Holtkamp ↔ Thomas Bohlen (1 patent)Dirk HoltkampDirk Holtkamp (4 patents)Rolf RohdenRolf Rohden (23 patents)Aloys WobbenAloys Wobben (186 patents)Thomas BohlenThomas Bohlen (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (3 from 832,812 patents)

2. Aloys Wobben (1 from 14 patents)

3. Wobben Properties Gmbh (437 patents)

4. Wobben, Aloys (0 patent)


4 patents:

1. 8294291 - Turbine for a hydroelectric power station

2. 8215255 - Ship rudder and ship provided therewith

3. D580844 - Ship

4. D536657 - Ship

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idiyas.com
as of
12/21/2025
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