Growing community of inventors

Schneeberg, Germany

David Ullmann

Average Co-Inventor Count = 8.00

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 = 4

David Ullmann ↔ Hans-Peter Nett (1 patent)David Ullmann ↔ Jan Haupt (1 patent)David Ullmann ↔ Christoph Göttert (1 patent)David Ullmann ↔ Lutz Kather (1 patent)David Ullmann ↔ Wolfgang Brings (1 patent)David Ullmann ↔ Ingo Steinberg (1 patent)David Ullmann ↔ Christoph Grave (1 patent)David Ullmann ↔ Ingo Steinberg (0 patent)David UllmannDavid Ullmann (1 patent)Hans-Peter NettHans-Peter Nett (31 patents)Jan HauptJan Haupt (23 patents)Christoph GöttertChristoph Göttert (3 patents)Lutz KatherLutz Kather (3 patents)Wolfgang BringsWolfgang Brings (3 patents)Ingo SteinbergIngo Steinberg (3 patents)Christoph GraveChristoph Grave (1 patent)Ingo SteinbergIngo Steinberg (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Getrag Getriebe Und Zahnradfabrik Hermann Gmbh & Cie Kg (1 from 1 patent)

2. Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg (110 patents)


1 patent:

1. 8622861 - Hybrid drive unit and method for its operation

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12/11/2025
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