Growing community of inventors

Bochum, Germany

Robert Hammelmann

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

Robert Hammelmann ↔ Ekkehard Kohler (1 patent)Robert Hammelmann ↔ Dirk Emde (1 patent)Robert Hammelmann ↔ Anna Seyfarth (1 patent)Robert Hammelmann ↔ Christian Blecking (1 patent)Robert Hammelmann ↔ Ingwar Hunsche (1 patent)Robert HammelmannRobert Hammelmann (1 patent)Ekkehard KohlerEkkehard Kohler (5 patents)Dirk EmdeDirk Emde (4 patents)Anna SeyfarthAnna Seyfarth (3 patents)Christian BleckingChristian Blecking (2 patents)Ingwar HunscheIngwar Hunsche (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Bleistahl Produktions-Gmbh & Co. Kg (1 from 8 patents)


1 patent:

1. 11311936 - Valve seat ring

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1/12/2026
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