Growing community of inventors

Kaiserslautern, Germany

Willi Stephan

Average Co-Inventor Count = 2.40

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 = 5

Willi StephanGunther Mall (2 patents)Willi StephanHerbert Dietrich (1 patent)Willi StephanWilli Stephan (2 patents)Gunther MallGunther Mall (9 patents)Herbert DietrichHerbert Dietrich (10 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Pfaff Industriemaschinen Gmbh (2 from 179 patents)


2 patents:

1. 4573421 - Sewing machine device for making garments with pleats

2. 4418629 - Device for making darts on cut parts of garments

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as of
1/16/2026
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