Growing community of inventors

Frechen, Germany

Stefan Köllen

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 = 1

Stefan KöllenHubert Ramesohl (1 patent)Stefan KöllenCarsten Eckert (1 patent)Stefan KöllenMatthias Mersmann (1 patent)Stefan KöllenStefan Köllen (1 patent)Hubert RamesohlHubert Ramesohl (32 patents)Carsten EckertCarsten Eckert (8 patents)Matthias MersmannMatthias Mersmann (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Khd Humboldt Wedag Ag (1 from 37 patents)


1 patent:

1. 6666680 - Multi-train installation for the production of cement clinker from raw meal

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1/4/2026
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