Growing community of inventors

Duisburg, Germany

Karl-Heinz Spiecker

Average Co-Inventor Count = 3.00

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 = 8

Karl-Heinz SpieckerJorn Moslener (1 patent)Karl-Heinz SpieckerManfred Appel (1 patent)Karl-Heinz SpieckerKarl-Heinz Spiecker (1 patent)Jorn MoslenerJorn Moslener (5 patents)Manfred AppelManfred Appel (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mannesmann Demag A.g. (1 from 40 patents)


1 patent:

1. 4310031 - Apparatus for fanning out wire coils

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as of
12/17/2025
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