Growing community of inventors

Friedrichshafen, Germany

Frank-Detlef Speck

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 = 44

Frank-Detlef Speck ↔ Eckhardt Lübke (26 patents)Frank-Detlef Speck ↔ Ludger Ronge (12 patents)Frank-Detlef Speck ↔ Ünal Gazyakan (1 patent)Frank-Detlef Speck ↔ Wilhelm Haerdtle (0 patent)Frank-Detlef SpeckFrank-Detlef Speck (1 patent)Eckhardt LübkeEckhardt Lübke (26 patents)Ludger RongeLudger Ronge (12 patents)Ünal GazyakanÜnal Gazyakan (3 patents)Wilhelm HaerdtleWilhelm Haerdtle (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Zf Lenksysteme Gmbh (1 from 93 patents)

2. Zf Friedrichshafen Ag (3,429 patents)


1 patent:

1. 6604034 - Device for the suspension and for roll-stabilization of motor vehicles

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as of
12/17/2025
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