Growing community of inventors

Bad Bergzabern, Germany

Josef David

Average Co-Inventor Count = 2.00

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 = 37

Josef DavidFranz Bohlender (1 patent)Josef DavidJosef David (1 patent)Franz BohlenderFranz Bohlender (59 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Apparte Und Heizwiderstande Gmbh (1 from 1 patent)


1 patent:

1. 5057672 - Radiator having PTC electric resistance heating elements and

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1/9/2026
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