Growing community of inventors

Mannheim, Germany

Ralf Graf

Average Co-Inventor Count = 1.80

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 = 0

Ralf GrafHans-Peter Merkel (2 patents)Ralf GrafMatthias Forstbach (1 patent)Ralf GrafRudiger Kratschmar (1 patent)Ralf GrafMatthias Forstbach (0 patent)Ralf GrafJens KÖHLER (0 patent)Ralf GrafRalf Graf (3 patents)Hans-Peter MerkelHans-Peter Merkel (10 patents)Matthias ForstbachMatthias Forstbach (2 patents)Rudiger KratschmarRudiger Kratschmar (1 patent)Matthias ForstbachMatthias Forstbach (0 patent)Jens KÖHLERJens KÖHLER (0 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Abb Ag (3 from 137 patents)

2. Abb Schweiz Ag (2,634 patents)


3 patents:

1. 9633756 - Device for connecting a circuit breaker

2. 8994543 - Diagnosis and maintenance device for a switchgear assembly and corresponding switchgear assembly

3. 8262285 - Device for measuring gas or air temperature in a casing box

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as of
12/17/2025
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