Growing community of inventors

Stuttgart, Germany

Sigfrid Hafner

Average Co-Inventor Count = 7.00

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 = 9

Sigfrid Hafner ↔ Michael Baeuerle (1 patent)Sigfrid Hafner ↔ Werner Haeming (1 patent)Sigfrid Hafner ↔ Oskar Torno (1 patent)Sigfrid Hafner ↔ Stefan Unland (1 patent)Sigfrid Hafner ↔ Iwan Surjadi (1 patent)Sigfrid Hafner ↔ Robert Sloboda (1 patent)Sigfrid HafnerSigfrid Hafner (1 patent)Michael BaeuerleMichael Baeuerle (73 patents)Werner HaemingWerner Haeming (43 patents)Oskar TornoOskar Torno (36 patents)Stefan UnlandStefan Unland (25 patents)Iwan SurjadiIwan Surjadi (17 patents)Robert SlobodaRobert Sloboda (15 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Robert Boschgmbh (1 from 29,302 patents)


1 patent:

1. 6012425 - Device for detecting knocking and regulation of an internal combustion

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as of
12/5/2025
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