Growing community of inventors

Holzheim, Germany

Friedrich Wellner

Average Co-Inventor Count = 7.00

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 = 16

Friedrich Wellner ↔ Andreas Mayr (1 patent)Friedrich Wellner ↔ Wolfgang Hahnl (1 patent)Friedrich Wellner ↔ Gerhard Elfinger (1 patent)Friedrich Wellner ↔ Thomas Koehler (1 patent)Friedrich Wellner ↔ Hans Bussmann (1 patent)Friedrich Wellner ↔ Klaus Spindler (1 patent)Friedrich Wellner ↔ Wolfgang Sailer (1 patent)Friedrich Wellner ↔ Christoph Kainzner (0 patent)Friedrich WellnerFriedrich Wellner (1 patent)Andreas MayrAndreas Mayr (7 patents)Wolfgang HahnlWolfgang Hahnl (3 patents)Gerhard ElfingerGerhard Elfinger (1 patent)Thomas KoehlerThomas Koehler (1 patent)Hans BussmannHans Bussmann (1 patent)Klaus SpindlerKlaus Spindler (1 patent)Wolfgang SailerWolfgang Sailer (1 patent)Christoph KainznerChristoph Kainzner (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Zeuna-staerker Gmbh & Co. Kg (1 from 5 patents)

2. Friedrich Boysen Gmbh & Co. Kg (21 patents)

3. Al-ko Kober Corporation (3 patents)


1 patent:

1. 6499562 - Muffler with variable sound-absorbing characteristics

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as of
12/12/2025
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