Growing community of inventors

Cologne, Germany

Dirk Freyer

Average Co-Inventor Count = 3.00

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

Dirk FreyerJoachim Hey (1 patent)Dirk FreyerNils Hanssen (3 patents)Dirk FreyerDaniel Gruenberg (1 patent)Dirk FreyerDaniel GRÜNBERG (0 patent)Dirk FreyerGerhard ZÜNDORF (0 patent)Dirk FreyerDirk Freyer (1 patent)Joachim HeyJoachim Hey (6 patents)Nils HanssenNils Hanssen (3 patents)Daniel GruenbergDaniel Gruenberg (2 patents)Daniel GRÜNBERGDaniel GRÜNBERG (0 patent)Gerhard ZÜNDORFGerhard ZÜNDORF (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hicat Gmbh (1 from 2 patents)

2. Sicat Gmbh & Co. Kg (8 patents)


1 patent:

1. 11291525 - Mandible protrusion splint

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as of
12/15/2025
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