Growing community of inventors

Monchen-Gladbach, Germany

Hermann-Josef Frentzen

Average Co-Inventor Count = 6.00

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 = 1

Hermann-Josef Frentzen ↔ Manfred Bellmann (1 patent)Hermann-Josef Frentzen ↔ Horst Biller (1 patent)Hermann-Josef Frentzen ↔ Gerd Pfeiffer (1 patent)Hermann-Josef Frentzen ↔ Alfred Lampe (1 patent)Hermann-Josef Frentzen ↔ Karl Oberem (1 patent)Hermann-Josef FrentzenHermann-Josef Frentzen (1 patent)Manfred BellmannManfred Bellmann (5 patents)Horst BillerHorst Biller (3 patents)Gerd PfeifferGerd Pfeiffer (3 patents)Alfred LampeAlfred Lampe (2 patents)Karl OberemKarl Oberem (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mannesmann Aktiengesellschaft (1 from 1,150 patents)


1 patent:

1. 4404832 - Operating a rolling mill working on seamless tubing

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as of
12/17/2025
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