Growing community of inventors

Menden, Germany

Roger Dirksmeier

Average Co-Inventor Count = 2.40

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 = 4

Roger DirksmeierDirk K Sprakel (2 patents)Roger DirksmeierMax Lakkonen (2 patents)Roger DirksmeierUlrich Hiltemann (1 patent)Roger DirksmeierAndreas Volk (1 patent)Roger DirksmeierMax Lakkonen (0 patent)Roger DirksmeierJörg Dahlhaus (0 patent)Roger DirksmeierStefan Kratzmeir (0 patent)Roger DirksmeierPeter Rogas (0 patent)Roger DirksmeierRoger Dirksmeier (4 patents)Dirk K SprakelDirk K Sprakel (10 patents)Max LakkonenMax Lakkonen (2 patents)Ulrich HiltemannUlrich Hiltemann (11 patents)Andreas VolkAndreas Volk (1 patent)Max LakkonenMax Lakkonen (0 patent)Jörg DahlhausJörg Dahlhaus (0 patent)Stefan KratzmeirStefan Kratzmeir (0 patent)Peter RogasPeter Rogas (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fogtec Brandschutz Gmbh & Co. Kg (3 from 8 patents)

2. Fogtec Brandschutz Gmbh (1 from 7 patents)


4 patents:

1. 11147994 - Pipe heating installation

2. 10265557 - Fire fighting system for a railway vehicle

3. 8881840 - Fire protection device for rail vehicles

4. 8590631 - Firefighting in railway vehicles

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1/13/2026
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