Growing community of inventors

Nuremberg, Germany

Heinz Petrak

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 = 6

Heinz PetrakGunther Vieweg (1 patent)Heinz PetrakMartin Weinicke (1 patent)Heinz PetrakHeinz Petrak (1 patent)Gunther ViewegGunther Vieweg (2 patents)Martin WeinickeMartin Weinicke (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Siemens Aktiengesellschaft (1 from 30,052 patents)


1 patent:

1. 4256352 - Needle journal bearing for a magnetically supported rotor shaft of a

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