Growing community of inventors

Aarbergen, Germany

Friedhelm Bultmann

Average Co-Inventor Count = 4.00

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

Friedhelm Bultmann ↔ Hubert Coenen (1 patent)Friedhelm Bultmann ↔ Helmut Hubert (1 patent)Friedhelm Bultmann ↔ Matthias Brunner (1 patent)Friedhelm BultmannFriedhelm Bultmann (1 patent)Hubert CoenenHubert Coenen (18 patents)Helmut HubertHelmut Hubert (2 patents)Matthias BrunnerMatthias Brunner (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Passavant-werke Ag (1 from 16 patents)


1 patent:

1. 5190672 - Method for thermal disposal of sewage sludge

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12/15/2025
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