Growing community of inventors

Hemer, Germany

Willi Sporenberg

Average Co-Inventor Count = 2.18

ph-index = 3

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 = 28

Willi SporenbergHorst Schenk (1 patent)Willi SporenbergKarl Lefor (1 patent)Willi SporenbergWerner Sattler (1 patent)Willi SporenbergHerbert Klockenhoff (1 patent)Willi SporenbergReinhold Wagner (1 patent)Willi SporenbergWilli Sporenberg (4 patents)Horst SchenkHorst Schenk (4 patents)Karl LeforKarl Lefor (2 patents)Werner SattlerWerner Sattler (2 patents)Herbert KlockenhoffHerbert Klockenhoff (1 patent)Reinhold WagnerReinhold Wagner (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sundwiger Eisenhutte Maschinenfabrik Grah & Co. (3 from 12 patents)

2. Aluminium Norf Gmbh (1 from 4 patents)

3. Sundwiger Eisenhutte Machinenfabrik Grah & Company (1 from 1 patent)


4 patents:

1. 4866967 - Apparatus for the stretch levelling and slitting of metal strip

2. 4770227 - Apparatus for the production of cast metal strip of amorphous and/or

3. 4124415 - Process for heating metal strips, in particular non-ferrous metal strips

4. 4022367 - Device for conveying metal sheets for affixation to a windup drum for

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12/16/2025
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