Growing community of inventors

Ennepetal-Milspe, Germany

Friedhelm Kramer

Average Co-Inventor Count = 2.14

ph-index = 2

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 = 18

Friedhelm KramerGunter Wolfertz (3 patents)Friedhelm KramerRaimund Stanik (2 patents)Friedhelm KramerWalter Ramspott (2 patents)Friedhelm KramerHarald Klaus (2 patents)Friedhelm KramerHorst G Appelt (1 patent)Friedhelm KramerFriedhelm Kramer (4 patents)Gunter WolfertzGunter Wolfertz (5 patents)Raimund StanikRaimund Stanik (4 patents)Walter RamspottWalter Ramspott (3 patents)Harald KlausHarald Klaus (2 patents)Horst G AppeltHorst G Appelt (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Schaeffer-homberg Gmbh (3 from 9 patents)

2. Firma Schaeffer-homberg Gmbh (1 from 5 patents)


4 patents:

1. 4226008 - Fastener for bands or the like

2. 4137607 - Button, particularly for clothing pieces

3. 4033012 - Button, particularly for clothing pieces

4. 3934777 - Machine for the attachment of fasteners

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as of
12/20/2025
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