Growing community of inventors

Eppelheim, Germany

Sonja Kaufmann

Average Co-Inventor Count = 5.00

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

Sonja KaufmannKarl-Heinz Helmstädter (1 patent)Sonja KaufmannThomas Schmidt (1 patent)Sonja KaufmannOlaf Lorenz (1 patent)Sonja KaufmannWilhelm Lefken (1 patent)Sonja KaufmannSonja Kaufmann (1 patent)Karl-Heinz HelmstädterKarl-Heinz Helmstädter (19 patents)Thomas SchmidtThomas Schmidt (18 patents)Olaf LorenzOlaf Lorenz (6 patents)Wilhelm LefkenWilhelm Lefken (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Heidelberger Druckmaschinen Ag (1 from 2,544 patents)


1 patent:

1. 7849794 - Device for transporting sheets in straight printing or perfecting operation by way of tongs grippers

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12/13/2025
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